Kathmandu eSIM — plans from ₹399.00

Tribhuvan International (KTM) is a compact airport with one international terminal, and the arrivals hall is where most Nepal trips lose their first hour. Operator counters near baggage reclaim do sell tourist SIMs, but they need your passport and a photo, the queue backs up when several wide-bodies land together, and activation is not always instant.

Outside, prepaid taxi desks and hotel pickups compete for attention, while Pathao and inDrive both run in the Kathmandu valley and are usually cheaper and calmer than negotiating at the kerb. The catch is that both need data the moment you step out, and the drive into Thamel or Patan runs through traffic where a live map genuinely helps. An eSIM installed at home over hotel or house Wi-Fi sidesteps the counter completely: the profile waits until your phone finds a Nepali network after landing, and validity begins at that first connection rather than on the day you bought it.

Nepal's mobile networks come from Nepal Telecom and Ncell, and your plan connects to a partner network and holds the strongest signal it can find. Across the Kathmandu valley the practical standard is 4G, and it is genuinely good in Thamel, Durbar Marg, Patan and Bhaktapur, though it slows sharply in the evenings and around big festivals when everyone is on it at once. There is no metro, so no tunnel problem. On valley day trips to Nagarkot, Chandragiri, Dhulikhel and Namobuddha you keep signal on the ridgelines; it starts thinning once you turn off the highways, and higher trekking routes beyond Sundarijal fade in and out with the terrain.

Download an offline map of the whole valley, not just the centre, because Kathmandu's lanes are unsigned, addresses are descriptive rather than numbered and even locals navigate by landmark. Keep data for Pathao, inDrive, translation and the airline apps that handle domestic flight changes, which happen often when weather closes Lukla or Pokhara. Hotel Wi-Fi in Thamel is common but slows to nothing in the evening, so a phone hotspot is often faster. Power cuts are shorter than they used to be but not gone, so carry a power bank and charge whenever you have a socket. If Pokhara is next on the itinerary, the same plan covers it, and the wider Nepal eSIM page lists what is available.