Indian Air Force officers, who participated in the Balakot airstrike in February, flew three Mirage 2000 aircraft and two Su-30MKI fighter aircraft in 'Avenger Formation', at Hindon Air Base in Ghaziabad on the 87th Air Force Day. Meanwhile, Wing Commander Abhinandan Varthaman led a formation of the Indian Air Force's MiG-21 Bison on the occasion.