Colonel Narendra Bull Kumar, PVSM, KC, AVSM, (also spelled Narinder; born 8 December 1933) is an Indian soldier-mountaineer. He was deputy leader of the first Indian successful Everest Expedition scaled the Mount Everest on 1965. He is known for the mountaineering reconnaissance expedition he undertook in Teram Kangri, Siachen Glacier and Saltoro Range for the Indian Army in 1978 at the age of 45. If he had not undertaken this expedition, all of Siachen Glacier would be Pakistan's. That is an area covering almost , but because of his expedition, India conquered all the entire area. Kumar crossed seven mountain ranges—Pir Panjal Range, Himalayas, Zanskar, Ladakh, Saltoro, Karakoram and Agil—to give India Siachen.