Flight Lieutenant Manavendra Singh was on the posted strength of an Operation Helicopter Unit and had to his credit the successful carrying out of over 2000 operational missions and over 1000 sorties to the highest helipad in the inhospitable terrain of the Siachen Glacier. Between 26 June and 21 August 1988, on eight separate occasions, at three different helipads on the Siachen Glacier, Flight Lieutenant Singh faced the additional challenges of incessant firing from adversary's small arms and artillery. He faced this grim situation every time with exceptional courage, skill and gallantry. He always undertook such missions with enthusiasm, in spite of being well aware of the inherent dangers. 

His gallant conduct has been a source of inspiration to all personnel of his unit, besides upholding the great traditions of the Indian Air Force.