In 1989, Dharmashaktu climbed Nanda Kot (6861 meters), accompanying as a part of a mountaineering team from Lucknow. He reached the peak. He was part of mountaineering teams that attempted Mamostong Kangri (7516 mt) in Ladakh and Nanda Bhaner (6236 mt) during 1992. He was liaison officer for a British team that attempted Nanda Ghunti (6309mt) in 1997. In 2008, he reached the summit of Kanchenjunga (8586 mt) along with a BSF team. As of June 2012, he has climbed about 38 peaks.