AIR
Nearest Airport is Bagdogra in North Bengal which is 124 kms and approximately 5 hrs. drive from Gangtok.  There are regular Indian Airline and other Private Airline services operating from Bagdogra linking Calcutta, Guwahati and Delhi.
Helicopter service from Bagdogra to Gangtok 45 mts.

RAIL
The two closer railway stations are Siliguri 114 kms and New Jalpaiguri 125 kms, connecting Calcutta, Delhi, Guwahati, Lucknow and other important cities in India.

ROAD
Gangtok is connected by road to Darjeeling, Kalimpong, Siliguri and also to all the District Headquarters within Sikkim. The Sikkim Nationalised Transport (SNT) plies regular bus services from Gangtok to all major cities and towns in North Bengal and within the State.  Booking facilities are available at Silguri and Gangtok.  There is also an outagency railway booking facility in Gangtok located at the SNT bus terminus.

ENTRY FORMALITIES
All foreigners intending to visit Sikkim can avail of 15 days' permit.  Permits for FITs and groups for restricted areas i.e. all subdivisions excluding "Chungthang" can be obtained 24 hrs.in advance from all Indian Missions abroad, Sikkim Tourism offices at Delhi, Calcutta, Siliguri and Gangtok, after furnishing requisite documents.
Permits
Domestic and Foreign tourists require permits to go to Tsomgo and Yumthang.
The Superintendent of Police, Check-Post Division of Sikkim, Police Department, Gangtok, issues permits for Domestic Tourists.  For Foreigners, the permit is issued by the Tourism Department, Government of Sikkim, Gangtok, for a group consisting of not less than 4 members (all foreigners) and the tour has to be organised by an approved Travel Agency / Tour Operator.
Trekking Permit is available on all working days from Tourism Department, Govt. of Sikkim.  Tel. 22064, 23423, 25277.
To visit sanctuaries contact Chief Wild Life Warden, Forest Secretariat, Deorali, Gangtok.  For the benefit of all tourists, taxis in Gangtok are provided with Rate Charts.