Visitors to Tawang district require a special Inner Line Permit from the government which are available in Kolkata, Guwahati, Tezpur, and New Delhi. Most of the travel from the plains is on a steep hill road journey, crossing Sela Pass at . Tourists can travel to Tawang from Tezpur, Assam by road. Tezpur has direct flights from Kolkata. Guwahati, Assam, is 16 hours by road. In June 2008, a daily helicopter service from Guwahati was started by the Arunachal Pradesh government.