Stay Connected in Kolkata

For a Kolkata trip under two weeks, an eSIM is usually the path of least resistance. You skip the KYC paperwork. You're online the moment your plane lands at Netaji Subhas Chandra Bose International. Your home number stays active for OTPs from your bank. Airalo offers India-specific data plans that work on Jio and Airtel networks, and you can install one before you fly. The tradeoff is cost per gigabyte, which runs noticeably higher than a local SIM. Most travel eSIMs are data-only, meaning no Indian phone number for restaurant reservations, ride-hailing verification, or domestic delivery apps. Staying longer than two weeks? Planning to lean on Ola, Uber, Swiggy, or Zomato? Want a callable number? A local SIM still wins on value. For a week of sightseeing across Kolkata, an eSIM is the easier call.

The three carriers worth considering in India are Jio, Airtel, and Vi. Kolkata's Netaji Subhas Chandra Bose International Airport has Airtel and Jio kiosks in the arrivals hall. Hours can run inconsistent on late-night flights, so don't count on them past around 11pm. If the airport kiosks are closed or the queue is long, official carrier stores are easier to find in the city. Airtel and Jio both run flagship stores on Park Street, in South City Mall, and in Salt Lake Sector V. Small mobile shops and convenience stores sometimes sell SIMs too. But they often can't complete the tourist KYC process. Stick with official outlets. Prices vary. Check carrier websites on arrival. A tourist data plan covering a week or so of generous data tends to fall in the budget-friendly range by Western standards. KYC is mandatory. Bring your passport, your Indian visa, and ideally a passport-sized photo. Activation typically takes a few hours, sometimes up to 24, owing to the manual verification process. One Kolkata-specific note: the airport kiosks tend to be slower than the Park Street flagship stores at processing tourist SIMs. Land with time to spare, and the city stores often get you online faster.

Local SIM wins on cost per gigabyte by a wide margin and gives you a callable Indian number for ride apps and reservations. eSIM wins on convenience. No kiosks. No paperwork. No waiting for activation. You're online before you clear customs at Kolkata airport. International roaming wins on absolutely nothing except not having to think about it. Even that comes at painful per-megabyte rates from most home carriers. For coverage inside Kolkata proper, all three options ride the same underlying networks, so real-world speed differences are minimal. The decision comes down to trip length and how much you value avoiding KYC paperwork on day one.