As India was getting ready to scale up its military capabilities after losing to China in the 1962 Sino-India war and facing rising pressures from Pakistan, MiG-21 was acquired by the country in 1963
IAF Group Captain Varun Singh, the lone survivor of the helicopter crash that killed Chief of Defence Staff Gen Bipin Rawat and 12 others, is being shifted to Bengaluru
Searches continued on Tuesday to locate the two pilots missing after the helicopter crash in Ranjit Sagar Dam in Jammu and Kashmir's Kathua district
It is suspected that the chopper crashed due to technical reasons
The crash occurred few minutes after the IAF Kiran aircraft took off from Air Force Station, Hakimpet on the city outskirts.