Sukhdev Singh Sukha was a member of the Khalistan Commando Force and one of the assassins of Arun Vaidya, the Chief of Indian army at the time of Operation Blue Star and also the architect of Operation Blue Star. He was responsible for three high-profile killings; Arjan Dass, Lalit Maken and Gen. Vaidya. He along with other members of Khalistan Commando Force was involved in the bank robbery in Miller Gunj branch of the Punjab National Bank in which more than Rs 57.0 million were looted.