Team 1: Indian (Bengal)
Leader: Biswadeb Ghosh
Period: June 2004
The peak rising above the Gangotri glacier was climbed on 19th of June by the popular east ridge. The summiteers from this ten members team were Dalip Sahoo, Dev Jyoti Datta and 4 high altitude porters.
Team 2: Indian (Bengal)
Leader: Partha Majumder
Period: May to June 2004
On 27th May, three members of the team with their two high altitude porters could reach up to 6470 m on the northeast face of the mountain.
It seems that both these teams joined hands right since the roadhead. The dates of approach, establishment of base camp and higher camps are same and the route taken, i.e. north ridge and the altitudes and description of higher camps are similar. Only one person from team 1, namely, Debi Sing reached the summit with members of Team 2, namely Dipankar Ghosh, Arun Sen and Joysing Sahi.