Gangstang, Lahoul. An Indian expedition led by Nirmal Gopal Chatterjee climbed Gangstang, first ascended by Italians in 1945. After ascendthe Biling Lampa stream, which flows into the Chandra River, they set up Base Camp on August 30. Other camps were at 16,000, 17,500 and 18,700 feet. On September 5 Kali Aditya and deputy leader Subhas Roy with porters Rinzing, Sonam and Lama reached the 20,218-foot summit. Sonam was drowned during the return trip.