On 7 February 1968, an Antonov An-12 turboprop transport aircraft of the Indian Air Force piloted by Flight Lieutenant Harkewal Singh and Squadron Leader Pran Nath Malhotra, disappeared while flying to Leh Airport from Chandigarh. Wikipedia
Start date: February 7, 1968
Crew: 4
Flight origin: Chandigarh International Airport, Chandigarh
Missing: 98, 4 remains recovered