Best eSIM for India: Four Ways to Buy Data, Costed per Gigabyte

Every comparison of India eSIMs is written in the same shape: a table of brands, a column of gigabyte allowances, a column of prices, and a recommendation that reads like the seller wrote it.

The shape hides the only number that decides anything, which is what a gigabyte actually costs you once the pack’s validity, the daily cap and the fee structure are folded in.

That makes the search for the best eSIM for India a search in the wrong dimension. India is the wrong country to shop in brand names. Mobile data there costs around sixteen US cents a gigabyte at retail, seventh cheapest in the world on Cable.co.uk’s data pricing index.

A brand selling you ten gigabytes for twenty-four dollars is not competing with another brand selling ten gigabytes for thirty; both are competing with a ₹299 pack sold at a phone shop that gives you two gigabytes a day for four weeks.

Seen that way, the honest comparison is between four categories of purchase rather than six logos, and the ranking changes depending on how long you are staying.

The costs below are drawn from public price pages in October 2026 and from Indian operator packs as listed on their own sites. Rupee figures are converted at ₹90 to the dollar for arithmetic only; substitute your card’s rate, the maths is one division.

Prices move, so treat the shapes as the finding and the exact numbers as a snapshot.

Four Things You Can Buy, and What Each One Is For

There are exactly four purchases available to someone flying into India with a phone. Each one is correct for a different trip, and three of them are compared against each other constantly while the fourth is ignored.

The fourth row is where most travellers lose money without noticing. A European or British contract does not include India in its inclusive roaming, which covers the EU and a short list of neighbours.

India sits outside it, so the operator sells a daily pass instead, typically priced per day with a data allowance that is generous only if you never use it. Three weeks of daily passes frequently costs more than a month of any travel eSIM, and it is charged whether or not you needed the phone that day.

The second and third rows are the same product at different prices, and the gap between them is the price of convenience. That gap is about three to one per gigabyte, which sounds damning until you notice that both are so cheap in absolute terms that the gap is measured in cents.

Priced per Gigabyte, the Ranking Reverses

Here is the arithmetic that most comparison pages never run, on a like-for-like basis.

Two things fall out of that table, and both contradict what the market says about itself.

The first is that the airport pack is not the expensive option. At twenty cents a gigabyte it is roughly twelve times cheaper than a ten-gigabyte travel plan and twenty times cheaper than a small one.

Everything written about airport SIM desks being a rip-off is measuring the wrong thing: what the airport costs you is an hour of your first morning, not rupees.

The second is that the small travel pack is the worst value in the entire market, and it is the one the industry advertises hardest. A single gigabyte for a week at $3.99 works out at nearly seventy times the price of a city store gigabyte.

It is also the pack that a two-day business trip genuinely needs, which is why it survives: it is bad value and the right purchase at the same time, for a specific trip shape.

The best eSIM for India is therefore not a brand at all, it is the category that fits the trip, and the number worth carrying in your head is a rule rather than a name.

The rule is simple: under three gigabytes, you are paying for convenience and should buy the smallest thing that works. Over ten gigabytes, you are paying a premium for something a rupee pack does better, and the only reason to accept it is that you cannot or will not spend a morning at a counter.

Airalo, Saily and Nomad Quote Different Networks

The three names that dominate searches for an India eSIM are Airalo, Saily and Nomad, with Holafly and a long tail behind them. The prices differ by a few dollars. The part that differs by more than price is the network each one lands on, and it is the part least consistently reported.

Published lists disagree with each other about which Indian operator each brand uses, and some of them are out of date. That is not a scandal; wholesale agreements change, and a brand that landed on one operator last year may land on another now.

The correct behaviour for a buyer is to read the network named on the specific plan page at the moment of purchase, and to treat any blog post, including this one, as a starting point rather than a specification.

The difference is not academic. Jio’s median 5G download is 258.54 Mbps and 158.63 Mbps across all technologies. Airtel is 205.10 and 100.67. Vi is 21.60 Mbps across all technologies.

A plan that lands on Vi in a city where Jio is fast will feel like a different country, and no amount of allowance compensates.

Reading the Four Curves Side by Side

The prices below are the ones on the sellers’ own plan pages in October 2026, and the right-hand column is there because the first three are the ones everybody compares. A brand that names its network on the plan page is giving you something checkable against an independent speed report. A brand that does not is asking you to trust a marketing line.

Alosim lists an India plan in the same band as the rest and offers fewer pack sizes, which makes it a reasonable buy when the allowance you want is one of the three it sells and a poor one when it is not.

The pattern across all four is that the middle of the range is where the per-gigabyte price is sane and the extremes are where the margin sits. A ten-gigabyte month at roughly $2.40 a gigabyte is defensible for the convenience. A one-gigabyte week at $3.99 is a convenience fee with a gigabyte attached.

One Gigabyte for a Week Costs $3.99 and Is Still Cheap

It is worth defending the small pack, because the arithmetic above makes it look indefensible and it is not.

Three days in Mumbai on business, in a hotel with fibre, moving between offices. The phone needs a map, a ride-hailing app, a messaging app, and enough data to survive the gaps between WiFi networks.

Actual consumption on a trip like that is routinely under a gigabyte, because the heavy traffic runs over hotel and office WiFi and the mobile connection carries navigation and messages.

For that trip, $3.99 is the whole data budget and the alternative is fifteen minutes at home versus an hour at a counter that opens after the meeting has started. Paying seventy times the city-store rate is not a mistake when the city store is closed, the queue is long, and the cost is four dollars.

The trip where the small pack becomes a mistake is the one people misjudge most often: ten days of movement, with photos uploading and a hotspot feeding a second device. One gigabyte disappears in about two days at that rate, after which the choice is a top-up at whatever the app charges mid-trip or a search for WiFi.

Buying the ten-gigabyte month at $23.99 costs less than three small top-ups and removes the decision.

The test is simple. Count the days you will not have hotel WiFi for most of the day. Under three, buy small. Over six, buy the ten-gigabyte month. Between the two, add up what a mid-trip top-up costs in the app; if it is more than the difference between the packs, buy up front.

Ten Gigabytes Drops the Price to $2.40 a Gigabyte

The ten-gigabyte month is the reference product for a normal holiday, and the reason is not the total, it is the slope.

Saily’s curve runs $3.99 for one gigabyte, $9.99 for three, $13.99 for five, $23.99 for ten. Each step up buys cheaper gigabytes than the last, which is how every data product in the world is priced and is not itself interesting.

What is interesting is where the curve flattens: the five extra gigabytes between the $13.99 pack and the $23.99 one cost $2.00 each, and beyond ten gigabytes the marginal price stops falling.

Airalo’s curve flattens earlier and lower on its larger packs, with a twenty-gigabyte month at $38, or $1.90 a gigabyte, and a ten-gigabyte month sometimes listed in the high teens during promotions.

Nomad prices twenty gigabytes in the low twenties at the bottom of its range, which is the cheapest per gigabyte among the travel brands and the one most sensitive to promotional pricing.

The practical reading is that the ten-gigabyte month is the last pack where paying per gigabyte still buys you something real. Above it you are buying allowance you will not use, and below it you are paying a convenience premium.

Ten gigabytes over thirty days is roughly 340 megabytes a day, which is enough for maps, messaging, a daily photo upload and a couple of video calls if you are disciplined about WiFi.

What it is not enough for is the trip where the phone is the only connection. Two people sharing a hotspot, photo backup running overnight, and a work call each morning will clear ten gigabytes in a fortnight, and the top-up mid-trip will cost more per gigabyte than the original pack did.

Unlimited in India Means 64 kbps After the Daily Quota

The word unlimited means three different things in this market and the differences decide whether the plan is usable.

The first meaning is a genuinely uncapped daily allowance that throttles rather than stops. This is what the Indian prepaid packs do: a ₹299 pack gives two gigabytes a day at full speed, then drops to 64 kbps until midnight, then resets.

You are never cut off. You are also never usable for anything beyond text and a slow map tile once the quota is gone.

The second meaning is a large allowance sold as unlimited because nobody reaches it. Some travel products are structured this way, with a fair-use threshold buried in the terms and a stated throttle rather than a cut-off.

The third meaning is a hotspot cap dressed as unlimited data. Holafly’s unlimited India packs are the clearest example: the phone’s own data is not capped in the usual sense, but the hotspot is limited to roughly a gigabyte a day, which matters enormously to a family sharing one connection.

What 64 kbps Actually Loads

A text message is a few hundred bytes and leaves the phone in a second. A map tile is a few tens of kilobytes and takes two to four seconds to arrive, which is the difference between a route that redraws and one that does not. A photo upload is two megabytes and is worth postponing. That is the whole calculus of a throttle: everything text-shaped survives, everything image-shaped does not.

Sixty-four kilobits per second is not a theoretical number. It is roughly the speed of a dial-up connection, which is enough for a WhatsApp text to leave the phone in two or three seconds and not enough for a map tile to redraw while you are moving.

If your plan’s fallback is 64 kbps, plan your day so that the quota is spent after you have arrived rather than before you have left.

The honest framing for a traveller is that “unlimited” in India is a marketing word for a daily quota plus a throttle, and the useful question is not whether the plan is unlimited but what the quota is and what the throttle does.

Holafly’s Unlimited Week Is $39.50, or $1.98 a Gigabyte at 20 GB

Unlimited products are priced so that the seller wins on average and the buyer wins only if they are unusually heavy. That is not a criticism, it is the structure, and it means the purchase decision is a forecast about your own behaviour.

Holafly’s curve is $19.90 for three days, $39.50 for seven, $46.90 for ten and $111.90 for thirty. Priced per day, the week is $5.64 a day, the ten-day is $4.69, and the month is $3.73, so the longer products are cheaper per day and all of them are expensive per gigabyte unless you actually use a lot.

Run the numbers both ways. If a week of unlimited use consumes twenty gigabytes, the effective price is $1.98 a gigabyte, which is competitive with the mid-range packs and cheaper than any small pack.

If the same week consumes five gigabytes, which is a realistic figure for someone with hotel WiFi, the effective price is $7.90 a gigabyte, which is the worst number on this page.

That makes unlimited the right purchase for exactly one profile: a trip where the phone is the primary connection, more than one person depends on it, and there is no reliable WiFi for most of the day.

A road trip with two phones and a hotspot. A stay where the accommodation’s network is unreliable. A work trip where the laptop tethers.

It is the wrong purchase for a city holiday with good hotel WiFi, and it is the wrong purchase for a solo traveller who mostly navigates and messages. Those people are paying for a ceiling they will never touch.

The Airport Pack Is Rs 500 and Beats Every Travel Plan per Gigabyte

The pack sold at the arrivals hall kiosk deserves a fair hearing, because the standard advice to avoid it is wrong on the numbers and right on the clock.

About ₹500 buys a twenty-eight-day pack with roughly a gigabyte a day. At ₹17.86 a gigabyte that is a fifth of what the cheapest large travel plan costs and a twentieth of the smallest one.

The pack is a real prepaid product on a real network, with a real Indian number attached, which the travel products cannot offer at any price.

What it costs is the queue, which is walked through step by step, the four documents, the photograph, the two-to-twenty-four-hour activation, and the fact that the person holding the passport has to be standing there. On an arrival at nine in the morning with nothing booked until the evening, that is a fair trade. On an arrival at two in the morning with a driver waiting, it is not.

There is a second cost that is easy to miss: the pack is tied to a passport record with a ninety-day ceiling, so it cannot be bought in advance, cannot be topped up from abroad later, and cannot be transferred to another phone.

It is a product for the trip in front of you, and treating it as an investment in a long relationship with India is a mistake.

The rule that follows is narrow and useful. If you land in daylight, stay more than a week, and have nothing time-critical in the first three hours, the airport pack is the best value purchase available. If any of those three conditions fails, buy before you fly and accept the premium.

The Rs 299 Store Pack Is an Unlimited Month for $3.32

The city store pack is the product that makes the Indian market unlike any other, and it is almost never mentioned in English-language comparisons because the audience for those comparisons cannot buy it before landing.

₹299 on Jio buys twenty-eight days with two gigabytes a day. Airtel matches at ₹299 on its own prepaid list. Vi matches the price with one and a half gigabytes a day.

Jio’s longer packs run ₹533 for fifty-six days and ₹799 for eighty-four. Airtel’s eighty-four-day pack is ₹839.

Two gigabytes a day for twenty-eight days is fifty-six gigabytes at full speed on the India plans sold on the product side, then a 64 kbps throttle for the rest of each day. In practice that is an unlimited month for $3.32, and there is no travel product on the market within a factor of ten of it.

The reason it exists is that India’s market is built for 1.4 billion domestic subscribers and priced for them, and a tourist is a rounding error in that base.

The reason it is hard for a visitor is not price, it is KYC: the pack requires the same documents as the airport version, from a store that may or may not want to process a foreign passport on a busy afternoon.

Worth knowing too is that the ₹299 pack is the one locals actually buy, which means the shop assistant understands it, the recharges are everywhere, and a top-up can be bought in cash at the counter. The friction is entirely at the front, in the registration, and not in the product.

What the Rs 299 Pack Does Not Include

A 64 kbps throttle, a ninety-day licence and no ability to pause. Those are the three constraints buried under the headline price, and each of them bites in a different way.

The throttle is the mildest. Two gigabytes a day at full speed is more than most travellers use, so the fallback rarely arrives before evening, and when it does, text still works.

The trap is planning around it: a day where the phone is the group’s hotspot can burn the daily quota by lunchtime, after which everyone is on 64 kbps and nobody understands why.

The ninety-day ceiling is the sharper one. The pack is issued against a passport record with a fixed life, and there is no extension. A trip that runs past it needs a fresh registration with the same documents, at a store, and the record has to be clear before the new one is created.

Anyone staying longer than twelve weeks should plan the re-registration as a calendar event rather than discovering it as an outage.

The third is that a prepaid pack cannot be paused or carried forward. Leave India for a week in the middle of a fifty-six-day pack and the days still burn. There is no equivalent of suspending a subscription, which is why the long packs are priced for people who are actually in the country for the whole period.

What the pack does include, and what no travel eSIM can match at any price, is a working Indian number with unlimited local voice on most plans. A 299-rupee pack is a phone, not a data pipe.

If your trip involves calling drivers, guesthouses, or anyone who will not use WhatsApp, that is the feature you are actually buying, and it is worth more than the data.

A Twelve-Day Trip Costed Three Ways

Price tables leave out the one input that varies most between travellers: the value of their own time. Put a number on it and the comparison stops being ambiguous.

Assume an hour is worth 20 dollars to you, substitute your own figure, and cost a twelve-day trip with ten gigabytes consumed.

The airport option has a range wide enough to cover both the best and worst outcome, and the crossover sits at about seventy minutes of queue. Under seventy, the airport pack beats the ten-gigabyte travel plan even after you charge yourself for the wait. Over seventy, the convenience product is genuinely cheaper once your time is priced.

That crossover is the useful output of the whole page. It converts an argument about brands into one measurement you make on the ground: how long is the queue. Look at the number of people in it, divide by the number of staff at the desk, multiply by four minutes, and you have your answer before you join it.

The city store never loses on this model unless the queue is catastrophic, which is why a fortnight in one place is the case where the rupee product is unambiguously correct. Three hundred rupees, forty-five minutes, and a connection that works for the rest of the trip.

Two caveats keep the model honest. The activation wait of two to twenty-four hours is passive, so it does not consume your time, but it does consume your first evening, and a model that only counts active minutes flatters the local options.

The time cost of the travel eSIM, meanwhile, is paid before the trip, when an hour is worth less than an hour of a holiday. Anyone who prices holiday hours higher than home hours should move the crossover in favour of buying early.

Your Home Carrier Sells a Daily Pass Nobody Prices In

The fourth option is the one already on your phone, and it is worth costing because it is frequently the most expensive thing in the comparison and the easiest to forget.

An inclusive roaming allowance on a European or British contract covers the EU and a short list of nearby countries. India is outside that, so the operator sells a daily pass with a data allowance, usually priced per day with a cap that throttles or stops.

Three weeks of that is frequently more than a month of any travel eSIM, and it is billed per day regardless of use.

The pass has two genuine advantages. It keeps your number, which matters if anything you booked will call or text you. And it requires no installation, no second profile and no decision at the airport, which for a two-day trip is worth more than the difference in price.

There is also a middle path that costs nothing. Keep the home line active for incoming calls and messages with data roaming switched off for that line, and buy data separately. Incoming text messages are normally free to receive while roaming, which is how your bank still reaches you, and it removes the main reason people buy a pass they do not need.

An international SIM card sold for a multi-country trip and an India-only plan are not the same product even when they land on the same network, because the wholesale rate behind a regional SKU is negotiated differently.

For anyone comparing a global roaming SIM against an India-specific product, the arithmetic is the same as the daily pass. Global products are priced for use across many countries and are competitive only when you are actually crossing borders. A single-country trip is the case where they are weakest.

Hotspot Rules Decide Which Plan a Family Should Buy

Two adults and two teenagers is not one purchase, and the hotspot rule is what turns it into one.

Indian prepaid packs allow hotspot sharing without a separate charge, and the shared data comes out of the same daily quota. That makes a single ₹299 pack with two gigabytes a day a viable family connection, with the caveat that the quota is shared, so four people on two gigabytes a day will hit the throttle most evenings.

Travel products differ. Airalo and Saily permit hotspot use, and the data counts against the plan. Holafly’s unlimited products cap the hotspot at roughly a gigabyte a day even where the phone’s own data is uncapped, which is the single detail that disqualifies it for a family sharing one connection.

The structural question is whether to buy one plan and share or buy separate plans. Sharing is cheaper and creates a single point of failure: the phone with the profile is the phone that has to stay charged, has to stay with the group, and has to be the one that works.

Separate plans cost more and remove that dependency, which matters on a trip where people split up during the day.

The compromise that works for most families is one plan with a generous allowance for the group phone or the hotspot device, plus a small plan on the teenager’s phone so that nobody is stranded when the group splits. The second plan costs $3.99 and removes an entire category of argument.

A UK Buyer and a US Buyer Do Not See the Same Price

Prices for the same product differ by currency and by storefront, and the difference is usually small enough to be a rounding error and occasionally large enough to matter.

A buyer in the United Kingdom sees prices in pounds, and the pound figure is not always a straight conversion of the dollar price; storefronts round and sometimes price by market. The same applies in euros and Australian dollars.

Differences of ten to fifteen per cent between storefronts are normal and not worth routing around; a difference of forty per cent is, and it is worth checking the same pack in two currencies before buying.

The other UK-specific point is the roaming one. British contracts advertise inclusive roaming and mean the EU plus a short list. India is outside it, so the assumption that a UK phone will just work on arrival is wrong in a way that costs money, and the daily pass sold to fill the gap is the most expensive option in this article.

Card fees are the third variable. A card that charges a foreign transaction fee adds a couple of per cent to any dollar purchase, which is small per transaction and adds up across a trip.

A card with no foreign fee removes the question, and if you have one, use it for the eSIM purchase as well as for the trip.

Where Rs 299 and $23.99 Cross Over

The break-even is not a price point, it is a trip length, and it depends on how much data the trip actually consumes rather than how long it lasts.

The table makes the trade visible: the rupee products win whenever the trip is long enough for the queue to be a rounding error, and the dollar products win whenever it is not. There is no trip where the answer is a brand name rather than a category.

The row that surprises people is the three-week stay. A fortnight in one city is where the airport pack stops being a compromise and becomes the correct answer, because the per-gigabyte gap between it and the travel products is wide enough to pay for the hour you spend in the queue several times over.

Five Trips and the Purchase Each One Wants

A four-day Mumbai work trip, hotel and office WiFi. A one-gigabyte week pack at $3.99, installed at home. The phone carries maps and messages, the laptop uses hotel WiFi, and the total data bill is under four dollars.

A ten-day Golden Triangle with a private car and four hotel changes. Ten gigabytes for thirty days at $23.99. The driver messages on WhatsApp, the maps run all day, photos upload in the evening, and ten gigabytes covers it with enough margin that nobody has to think about the quota.

Three weeks in Kerala in one place. The airport pack at about ₹500, bought on arrival in daylight. The per-gigabyte cost is a fifth of the travel alternatives and the queue is a one-time cost on a trip that lasts three weeks.

Six weeks in Bengaluru. The city store pack at ₹299, with a plan to re-register at day ninety if the trip extends. Nothing in the dollar market is within a factor of ten, and the shop will top it up in cash.

Two days in Delhi on the way to somewhere else. The home carrier’s daily pass, if it exists and the price is sane, because installation time exceeds usage time. Otherwise the smallest travel pack.

What a Dead Profile Costs to Replace

The policies differ in a way that only matters when something has gone wrong, which is exactly when you cannot comparison-shop.

Travel sellers generally reissue a QR code once at no charge and charge for subsequent reissues, with the definition of “subsequent” varying. The reissue requires a working internet connection and access to the account, so a phone that has been wiped and a trip that has no data is the worst case: you need a second device or a hotel network to recover.

Local operators are stricter in a different way. A replacement requires the KYC record again, at a store, with the passport and the address proof. There may be a replacement fee. The number itself is recoverable, which is more than a travel product can promise, because the travel product never gave you a number to recover.

Refunds are where the asymmetry is sharpest. A travel eSIM bought but not activated is usually refundable inside a window, and the window is short. An Indian prepaid pack, once activated, is not refundable at all, and the money sits on a connection that expires in ninety days.

The practical consequence is that the cheaper product is also the less forgiving one, and that is a fair trade as long as you know it going in. If a lost phone would ruin the trip, buy the product with the number and the store behind it.

If a lost phone would be an inconvenience, buy the cheap one and keep the QR code in a place that is not the phone.

Three Signs You Are About to Buy the Wrong Size

The first sign is a pack whose validity is shorter than the trip. A seven-day pack on a ten-day holiday is not a saving, it is a top-up in the middle of the trip at whatever the app charges, and the app knows you have no alternative.

The second sign is a daily allowance that is smaller than one day’s actual use. A five-gigabyte pack spread over thirty days is 166 megabytes a day, which is below the threshold where a map application is comfortable. Buying ten gigabytes for the same month usually costs less than two top-ups.

The third sign is a hotspot cap on a plan bought for a group. If more than one person depends on the connection, the hotspot rule is the first specification to read and the data allowance is the second, because an uncapped phone with a capped hotspot is a single-person product.

All three mistakes come from the same place: comparing total price instead of the price of the thing you will actually consume. The fix is a two-line calculation done before purchase, not a better brand.

Five Checks Before You Tap Buy

None of these takes more than a minute, and each one has cost somebody a trip.

The supported-phone check settles the handset question before any of this matters.

Read the validity against your dates, not against your data. A thirty-day pack bought for a thirty-five-day trip expires on day thirty with data still on it. The pack that fits is the one whose calendar covers the itinerary, and the difference in price between a thirty-day and a longer product is usually smaller than one mid-trip top-up.

Find the named network. A plan page that says best available network is telling you it will place you wherever its wholesale rate is cheapest. A plan page that names Jio or Airtel is telling you something checkable.

Since Jio’s all-technology median is 158.63 Mbps against Vi’s 21.60, the name matters more than the allowance.

Check the throttle number, not the word unlimited. Sixty-four kilobits per second is a text-only connection. A stated throttle of 128 or 256 kbps is a different product, and the difference is a map that redraws versus one that does not.

Check the hotspot rule if anyone else depends on the connection. A phone-only plan shared with a family is a plan that fails on day two. A stated hotspot allowance of a gigabyte a day is workable for two people and thin for four.

Check whether top-ups exist mid-trip and at what price. A plan with no top-up path turns a data miscalculation into a purchase at the airport, at airport prices. A plan with cheap top-ups forgives the miscalculation, and that forgiveness is worth a few dollars up front.

The order matters. Validity and network decide whether the product is usable; throttles and hotspot decide whether it is usable by the number of people on the trip; top-ups decide how badly a mistake costs you.

Price is the last thing to look at, because price without those four is a number about a product you might not be able to use.

Which One Do I Buy for a Ten-Day Trip? Seven Answers

Is a travel eSIM for India actually cheaper than the airport counter? No, and it is not meant to be. It is twelve to seventy times more expensive per gigabyte and it removes an hour of queue plus a two-hour activation wait.

So why does anyone buy one? Because the counter requires documents, presence and time, and the travel product requires fifteen minutes at home. The premium buys the removal of a task, not data.

Which brand has the best price per gigabyte? On the large packs, Nomad at the bottom of its range and Airalo’s twenty-gigabyte month are the cheapest travel options. On small packs, Saily’s one-gigabyte week is the cheapest, which is a different question.

Should I buy the unlimited plan? Only if the phone is the primary connection for more than one person, or if you will tether a laptop for work. For a city holiday with hotel WiFi, it is the most expensive way to buy five gigabytes.

What does a prepaid India SIM card cost in 2026? About ₹299 for twenty-eight days with two gigabytes a day, and about ₹500 for the airport version with a gigabyte a day. Both need KYC and neither can be bought before you land.

Can I use my home carrier instead and skip all of this? Yes, and check the price first. India is outside EU and UK inclusive roaming, so the pass is billed per day, and three weeks of daily passes usually exceeds a month of any eSIM.

What happens if I run out mid-trip? The app will sell you a top-up at a worse rate than the original pack, and the rupee products will let you recharge in cash at any phone shop. Buying the right size on day one is cheaper than either.

The arrival walkthrough covers the documents, the e-Arrival Card and the queue this page prices in hours. If a callback number matters to your booking, the number page explains which ones fail without one. For network-level detail, Jio against Airtel against Vi, the carrier guide goes deeper than a price table can, and the current India plans are the product side of this comparison. Travelling on to a second country? The Asia regional page covers what changes when one plan has to span borders.