Squadron Leader Mohinder Singh (6870) Aeronautical Engineering (Mechanical) was commissioned in the January, 1963. He is commanding a Repair and Salvage Unit since 21st February, 1972, which provided 3rd line servicing cover for aircraft of units in Western and Rajasthan sectors.

The officer worked out repair schemes for aircraft having structural damage due to accidents or fatigue which at times is beyond the normal scope of the unit. Some of the items for repairs, which would have taken a long time to materialize ex-India at a high cost, were improvised due to his ingenuity and repairs were executed in the shortest possible time. The officer with his initiative, organizational ability, high technical skill and leadership has been instrumental in developing the unit into a very proficient and well knit team thus enabling it to carry out repairs much beyond the normal task for a Repair and Salvage Unit. The prompt action by the unit has cut down the aircraft "ground time" to a very large extent which in turn has helped the Squadrons to sustained high serviceability and grater aircraft utilization. His leadership and guidance in evacuating a category 'B' Helicopter from Keylong Helipad in Lahul and Spiti Valley to a Base Repair Dept through hazardous and difficult roads, has been extremely praiseworthy.

Throughout his service career, Squadron Leader Mohinder Singh has displayed a very high degree of initiative, resourcefulness and perseverance. He is awarded the Vishisht Seva Medal for rendering the distinguished service of a high order.