New Delhi: A month before the retirement of the MIG-21s, which was the first supersonic fighter to be included by India from Russia in 1963, but in the later years, a high accident-plated, IAF chiefs and other officials trimmed the old workhore in single-engine jet.Air Chief Marshal AP Singh said after the MiG -21 sorters at the NAL airbase, “It is a wonderful aircraft to fly, very agile and stage … It will be remembered by all those who flew it.” “But everything is a time and place. Technology is old and is now difficult to maintain.”It’s time to visit new platforms: LeoAir Chief Marshal AP Singh said, “MiG -21 technology is old. It is time to visit the new platforms of Tejas, Rafales and Sukho -30.”ACM Singh Flave, one of the MiG -21 sorters, was in a formation led by Squadron Leader Priya Sharma, one of the more than 20 female fighter pilots in the IAF who are also flying Sukho -30 MKIS and Rafales. Farewell to formal function for MIG-21s, over six decades in service, who used to participate in all major conflicts to delta-wing fighters, but pilot was highly disabled for errors, will be in Chandigarh on 26 September. The MiG -21 was the most large -scale supersonic fighter jets in history.