SYSM meaning in General ?

The Sarvottam Yudh Seva Medal (Ultimate War Service Medal) is India's highest wartime distinguished service decoration. It is awarded for the highest degree of distinguished service in an operational context, which includes times of war, conflict, or hostilities. The award is a war-time equivalent of the Param Vishisht Seva Medal, which is India's highest peacetime distinguished service decoration.

The Sarvottam Yudh Seva Medal may be awarded posthumously. It is awarded for distinguished service of the most exceptional order during war/conflict/hostilities. It may be awarded to all ranks of the Army, the Navy and the Air Force including those of Territorial Army Units, Auxiliary and Reserve Forces and other lawfully constituted Armed Forces when embodied, as well as Nursing Officers and other members of the Nursing Services in the Armed Forces.

The medal has been awarded only three times in history. They have been awarded to officers commanding a large force in a conflict. Lieutenant General A.S. Kalkat was the overall commander of the Indian Peacekeeping Force (IPKF) in Sri Lanka. Air Marshal Vinod Patney was the Western Air Commander and Lieutenant General H.M. Khanna was the Northern Army Commander during the Kargil War.