On 10 June, team leader PM Das along with Mohan Lal, Anand Singh, HAP Nand Singh occupied Camp 1. On 11 and 12 June Nari, assisted by Inder and HAP Nandan spent time opening the route for Camp 2. They fixed a nylon line of 555 m on the rock and 380 m of their climbing ropes on the ice and snow, anchoring it with snow-stakes and ice pitons. On 13 June Nari, Inder Kumar, HAP Sangram Singh, Mohan Lal and PM Das started early and all five of them were on the summit by 4.30 p.m. This was the first ascent of Lampak I.