Flight Lieutenant Tejinder Singh has been serving with a Helicopter Unit since 29th September, 1969. Out of a total of 2375 flying hours, he has flown 1500 operational hours. In August 1967, while landing at a forward helipad in Mizoram, one of the rotor blades of his aircraft flew off, cutting the tail rotor in the process. In this accident he was injured and placed in a lower medical category. Undaunted by this accident, one year later when he became medically fit, he resumed flying with full vigour and always set a good personal example. During Indo-Pak Conflict 1971, he flew a number of operational sorties by day and night in the Western Sector, and later his unit was engaged in the Air Maintenance task for forward troops. Flight Lieutenant Tejinder Singh was the detachment Commander. By his personal hard work and example the detachment succeeded in airlifting maximum tonnage in the available time before bad weather set in. On the 21st February, 1973, there was an emergency message in the afternoon for the evacuation of a very serious casualty from a forward base. The timing was such that dark night flying had to he carried out to save the casualty. For this task, Flight Lieutenant Tejinder Singh was detailed. He successfully carried out the evacuation and saved a precious life.

Throughout, Flight Lieutenant Tejinder Singh has displayed courage determination, professional skill and leadership in the highest traditions of the Air Force.