Wing Commander Shyam Sundar Singh Chauhan was commissioned in the Indian Air Force on 2nd August, 1964. A keen and dedicated flier, he has flown over 2700 accidentÃ‚Âfree hours as Captain. During the period November, 1980 to January, 1981, he played a keen role in planning and execution of sensitive border survey tasks. Flying with tenacity and precision over rugged mountainous terrain, he brought back outstanding results. The information has been of great strategic value in updating our maps and has increased our knowledge of these inaccessible regions.