Buying a SIM Card and Getting Online in Mumbai: A Practical Guide

Getting a working Indian number is one of those Mumbai jobs that looks trivial and turns fiddly the moment you land. The good news: the city is extremely well covered, data is absurdly cheap by global standards, and you have more ways to get online than almost anywhere else. The catch is paperwork. India runs strict, in-person KYC (Know Your Customer) checks on every new SIM, and since 2024 the rules have tightened further. This guide walks you through the realistic options — an eSIM before you fly, a SIM at the airport, or a proper connection from a shop in town — with the documents, rough prices and small traps that actually matter.

The three networks, and which to pick

Practically everyone in Mumbai is on one of three operators: Jio, Airtel or Vi (Vodafone Idea). All three now run 5G in the city and all three will serve you well across the island, the suburbs and the local-train corridor.

• Jio is the biggest and generally the fastest for raw data, with the broadest 5G footprint. It is the safe default if you mostly want cheap, fast internet.
• Airtel is the other strong all-rounder, often the smoothest for call quality, and — importantly for visitors — the only operator with a counter inside Mumbai airport.
• Vi has thinner national reach but remains genuinely competitive in Mumbai, which is historically one of its home circuits. Fine if someone hands you a Vi SIM; not worth hunting for.

For a short trip, network choice barely matters. For a longer stay, lean Jio or Airtel.

The fastest route: an eSIM before you fly

If your phone supports eSIM (most iPhones from the XS onward and recent Android flagships do), the least painful option is to install a travel eSIM before you leave home. Providers such as Airalo, Saily, Holafly and Nomad sell India data plans that ride on Jio or Airtel’s networks but are sold internationally, so they sidestep India’s local KYC and the “local reference” hassle entirely. You install it at home, and it switches on with data the moment you connect after landing.

Rough pricing at the time of writing: Airalo India plans start around US$4–5, Saily is often the cheapest per gigabyte (roughly US$20 for 10GB), and Holafly sells unlimited-data day passes from about US$6–10 a day for heavy users. The trade-off is that most travel eSIMs give you data only — no Indian phone number for calls or OTPs. That is usually fine, since you will make calls over WhatsApp anyway.

A sensible hybrid many travellers use: land on a travel eSIM for instant internet, then decide at leisure whether you also want a local SIM with a proper Indian number.

Buying a SIM at Mumbai airport

Airtel counter, CSMIA Terminal 2 (Arrivals)

This is the only walk-up option on arrival. In the international arrivals hall of Chhatrapati Shivaji Maharaj International Airport (CSMIA) Terminal 2, there is an Airtel booth located near Exit B. Jio and Vi do not sell at the counter here, so if you want a physical SIM the minute you land, Airtel is it. (Matrix Cellular, a travel-SIM reseller, also has an airport presence, but its counter sits in the departures area past immigration and its premium plans are pitched at outbound international travellers — so it is not a realistic option when you arrive.)

The headline tourist pack is a 28-day plan for around Rs 600, giving roughly 1.5GB of data a day plus unlimited local calls. It is a little marked up — the same plan is cheaper if you top up later through the Airtel app — but you are paying for convenience and instant activation.

Practical tip: the booth broadly tracks flight timings but is not reliably staffed through the small hours. If you land very late, plan to use an eSIM or hotel Wi-Fi overnight and sort the SIM the next day. Carry a passport photo and some cash; card machines are temperamental.

Buying a SIM in the city

Away from the airport, you have three routes: an operator’s own store, a big electronics chain, or a neighbourhood mobile shop.

Official Jio, Airtel and Vi stores (citywide)

There are branded stores in virtually every neighbourhood — Bandra, Andheri, Lower Parel, Colaba, Dadar and beyond — and you can find the nearest My Jio Store through the operator’s store-locator. An official store is the smoothest place for a foreigner to complete KYC, because staff deal with tourist documents regularly and the activation is done correctly the first time.

Practical tip: go in the morning if you can. Verification sometimes needs a tele-verification call or SMS to complete, and you want that finished well before evening.

Reliance Digital and Croma (malls citywide)

The large electronics chains — Reliance Digital (which sells Jio) and Croma — carry SIMs alongside phones and are a convenient one-stop if you are also buying a device or a local phone.

Lamington Road, Grant Road (South Mumbai)

Lamington Road (officially Dr Dadasaheb Bhadkamkar Marg), a short walk from Grant Road station, is the city’s sprawling electronics bazaar — hundreds of shops selling phones, components and accessories, typically open around 11am to 8pm and shut on Sundays. It is the place to pick up a cheap handset, a case or a cable at keen prices.

Practical tip: buy the SIM itself from an authorised operator counter, not a random stall. An improperly registered SIM can be delayed or blocked, and unpicking that as a visitor is a headache. Use Lamington Road for hardware, an official store for the connection.

Documents and KYC: what to carry

For a foreign passport holder, expect to hand over: your passport, your visa (an e-Visa printout is fine), a passport-sized photograph or two, and a local address in India — your hotel’s address and phone number are normally accepted. Some outlets also want a photocopy of the passport photo page and visa page, so carry a couple of copies.

A few things to know:

• Manual KYC applies to foreigners. The Aadhaar-based instant eKYC that residents use is not available to you, so verification is done by hand and takes a little longer.
• Activation is not instant. A new connection usually needs a tele-verification step (often a short call or SMS to a number like 59059) before outgoing calls and data go fully live. Budget anywhere from 30 minutes to a few hours; occasionally it runs to a day.
• Validity is capped. Tourist connections are typically issued with validity tied to your visa or up to 90 days, whichever is shorter.
• The “local reference” snag. Since sellers now carry heavy liability for mis-registered SIMs, some ask for a local Indian contact. This is reported more at Delhi than Mumbai, and here a hotel address and number usually suffice — but if a shop turns awkward, simply try an official operator store, which is used to tourists.

The best data plans right now

Once you have a SIM, recharge through the operator’s app. Indicative prepaid plans:

• Jio: around Rs 299 for 1.5GB/day over 28 days, Rs 349 for 2GB/day, or an annual Rs 3,599 pack with ~2.5GB/day for a full year — excellent value if you visit India often.
• Airtel: broadly similar, with 28-day packs in the Rs 300s and longer 84-day options.
• Vi: a Rs 365-ish pack gives about 2GB/day for 28 days with unlimited calls.

All include unlimited local calls and generous 5G in Mumbai. For most visitors a single 28-day pack is more data than you can realistically use.

For expats and long-stayers

If you are settling in, a postpaid plan makes sense once you have a longer-term local address and, ideally, an Aadhaar or long-stay visa. Operators offer free home delivery of SIMs with doorstep KYC through their apps. If you already hold an Indian number and want to switch networks, use MNP (mobile number portability): SMS PORT followed by your number to 1900, collect the code you get back, and take it to the new operator — the switch takes a few working days and you keep your number.

One modern wrinkle worth knowing: WhatsApp and similar apps register against the SIM in your phone, and India has been tightening rules that tie such apps to an active SIM. In practice, keep the SIM you registered WhatsApp on active if you rely on it for OTPs and messages.

FAQ

Can I get a SIM the instant I land in Mumbai? Yes, from the Airtel booth near Exit B in Terminal 2 arrivals, though it is not staffed round the clock. For guaranteed instant data at any hour, install a travel eSIM before you fly.

Is Jio available at the airport? No. Only Airtel sells at a CSMIA arrivals counter. For a Jio SIM, visit any Jio store or a Reliance Digital in the city.

What documents do I need as a tourist? Passport, visa, a passport photo, and a local address (your hotel is fine). Carry photocopies of your passport and visa pages too.

How much should a month of data cost? Very little — roughly Rs 300–600 for a 28-day pack with 1.5–2GB per day and unlimited local calls. Airport tourist packs sit at the top of that band for the convenience.

Do eSIMs need the same KYC paperwork? International travel eSIMs (Airalo, Saily and the like) need no Indian KYC at all. A local Indian eSIM from Jio or Airtel does require the same in-person verification as a physical SIM.

The bottom line

For a short visit, the frictionless play is a travel eSIM installed before departure, topped up with an Airtel airport SIM if you want a genuine Indian number. For a longer stay, walk into an official Jio or Airtel store with your passport, visa, photo and hotel address, and you will be online within the hour. Buy hardware at Lamington Road if you like, but always take the connection itself from an authorised counter. Once you are set up, Mumbai rewards you with some of the cheapest, fastest mobile data anywhere — the paperwork is the only hard part, and now you know how to clear it.