Area:Garhwal - Amritganga valley, Deoban glacier
Height: 6855 m
Team :Indian (Summiteers, Kolkata) expedition
Leader: Amitava Roy
Team Size:10 members & 2 sherpas
Period:15th May 2005 to 14th June 2005
The team reached the base camp at Thaur Udiar (4095 m) in the Amritganga valley on 26th June. They established three camps after entering the Deoban glacier. From Camp 3 they climbed peak 6123 m on 3 June. Arupam Das, Susanta Basak and the leader climbed the peak via the east ridge. From the same camp on 4th June Bidhan Parvat was climbed from its Southeast face by Arupam Das, Tashi (Sherpa) and Gyalgen (Sherpa).
The team did not attempt Deoban due to the risk of avalanches on their proposed route.