Edmund Hillary
Sir Edmund Percival Hillary (20 July 1919 – 11 January 2008) was a New Zealand mountaineer, explorer, and philanthropist. On 29 May 1953, Hillary and Nepalese Sherpa mountaineer Tenzing Norgay became the first climbers confirmed to have reached the summit of Mount Everest. They were part of the ninth British expedition to Everest, led by John Hunt.
Avtar Singh Cheema
Avtar Singh Cheema (1933–1989): along with 8 others were the first Indians to lead a successful expedition that climbed Mount Everest on 20 May 1965. He was a part of the third mission undertaken by the Indian Army, in 1965, to climb Mt. Everest after two failed attempts. 
The 1965 Indian Army expedition was the first successful Indian Expedition to Everest which put 9 mountaineers on top, a record to last 17 years. He along with H. P. S. Ahluwalia, Nawang Gombu, Sonam Wangyal, Sonam Gyatso, Harish Chandra Singh Rawat, Chandra Prakash Vohra among others successfully summited the peak. He was a captain in the 7th Bn Parachute regiment at that time. Later he was promoted to colonel.