Owing to the treacherous, rugged landscape typical of the Himalayas, all remote villages around this region have either limited or no internet connectivity. These remote regions include: Kakstet, Pangong Tso, Hunder, Turtuk and Tsomoriri. At the base camp (Leh city), however, you will have a good network connection, so you can easily connect with the outside world as per your convenience. That said, if you plan to buy a dedicated SIM card upon arriving in India, keep in mind that both local or international service providers will work just as same.