Wing Commander Kshounish Chandra Sinha (4856) was commissioned in the Medical Branch of the Indian Air Force in March, 1955.

Wing Commander Sinha has been associated with the Institute of Aviation Medicine since October 1963. In the Department of Physiology, he has built up a fine laboratory having Environmental Cardio-pulmonary, Metabolic and Biochemistry Sections. His efforts have enabled the Institute to undertake sophisticated research in the respective fields, and in establishing a rational basis of post graduate studies in the field of Aviation Medicine which have helped an all round growth and efficiency of the Institute.

Wing Commander Sinha has conducted a series of research projects on heat stress on pilots, with an endeavour to find out ways and means to prevent the effects of heat stress which affect flying efficiency of the pilots and endangers flight safety. On the basis of his findings, many preventive measures have been incorporated in the form of airconditioning of crew rooms and provisioning of protective cover to parked aircraft. Many other preventive measures suggested by him have been tried in the field and found effective in enhancing aircrew flying efficiency. Some of them have been accepted and some are in the process of being implemented. He has published a series of scientific papers in various scientific journals on various topics of aero-medical interest of utmost importance.

Another significant contribution of Wing Commander Sinha has been in establishing the facilities for research in the field of Ergonomics at the Institute, with a view to evolve a method of determining physical work efficiency of ground duty personnel under tropical climatic conditions and to suggest preventive measures against its illeffects. This study also aims at exploring the possibilities of rehabilitating cardiac cases into useful occupations after their recovery. He has also compiled data on the norms of Pulmonary Function Tests of Indian subjects, thus eliminating the confusion created by the dependence on European standards. His finding on the disorder of carbohydrate metabolism following head injury has been one of the pioneering works in the field. The same has been reproduced in the abstract form in NASA bibliography. His finding is one of the most well authenticated data on the subject available at present. Wing Commander Kshounish Chandra Sinha is a well known figure in the field of Physiology and Aviation Medicine. His contribution in this field is enormous. His excellent all round performance both in the Institute and various national and international seminars has won him the recognition as an 'Expert' in the Armed Forces Medical Research Committee. He is also one of the referees of the Armed Forces Medical Journal. He has rendered distinguished service, of a high order and is awarded Vishisht Seva Medal.