Gill served in various capacities in the Punjab Police, including as a Superintendent of Police (SP) in several districts. He gained notoriety for his tough stance against Sikh militants during the 1980s, when Punjab was plagued by terrorism. In 1986, he was appointed as the Inspector General of Police (IGP) of the Border Security Force (BSF), where he played a crucial role in curbing militancy along the India-Pakistan border.
Gill served in various capacities in the Punjab Police, including as a Superintendent of Police (SP) in several districts. He gained notoriety for his tough stance against Sikh militants during the 1980s, when Punjab was plagued by terrorism. In 1986, he was appointed as the Inspector General of Police (IGP) of the Border Security Force (BSF), where he played a crucial role in curbing militancy along the India-Pakistan border.