During the India-Pakistan conflict in December 1971, Wing Commander Bhupendra Kumar Bishnoi was in command of an operational Fighter Squadron in the Eastern Sector. He led the first two Bombing mission over Tezgaon airfield and undeterred by heavy ground fire, he hit Tazgaon runway and also destroyed a large transport aircraft on the ground. During one of these Bombing missions, his aircraft was hit by a heavy shell and sustained severe damage. Notwithstanding this, he pressed home the attack. On the 14th December, 1971, he raided military targets in Dacca inspite of intense ground fire. His attacks on the Government House at Dacca and other targets were carried out with accuracy. During the missions in support of Indian army, he led 10 sorties against heavily defended enemy positions in the Comilla Sector and destroyed enemy Bunkers and strongholds.

Throughout the operations, Wing Commander Bhupendra Kumar Bishnoi displayed gallantry, professional skill and leadership of a high order.

During the operations against Pakistan in December, 1971, Flight Lieutenant Manbir Singh served with an Operational Squadron in the Eastern Sector. He flew 20 sorties in counter air and offensive support missions over Bangla Desh. During an escort mission he engaged enemy aircraft successfully, forcing them to break off their attacks on the main formation, which was occupied in striking the enemy’s airfield. He executed bombing missions against heavily gun-defended airfields by day and night. He also took part in rocket and bomb strikes against variety of targets, like troops, bunkers, gun positions, tanks dumps and Radio transmitters. These targets were protected by guns of varying calibre, and on more than one occasion his aircraft was hit by ground fire.

Throughout, Flight Lieutenant Manbir Singh displayed gallantry, professional skill and devotion to duty of a high order.