Brigadier Hardev Singh Kler commanded mountain brigade of the Corps of Signals in the east during the war of 1971. the brigade had to move along the Kamalpur - turang river and clear enemy positions at several places on the way, including Kamalpur, Bakshigunj, Jamalpur, Tangail and Turang.
The Brigadier led the advance from the front, directing the operations with great skill, disregarding the dangers to his life. It was at the battle of Jamalpur, that he proved his mettle. the inspiring presence of the Brigadier helped his troops lay siege behind the enemy positions, south of Jamalpur. the enemy was successfully held back and even their subsequent efforts to recapture the position were foiled by the Brigadier's astute strategy. The Pakistanis suffered heavy losses and a heavy cache arms and ammunition fell into Indian hands.
Brigadier Kler was decorated with the Mahavir Chakra for his inspiring leadership and gallantry.