High Quality Content by WIKIPEDIA articles! Sukhdev Singh Sukha was a member of the militant organization Khalistan Commando Force and one of the assassins of Arun Vaidya, the Chief of Indian army at the time of Operation Bluestar and also the architect of Operation Bluestar. He was responsible for three high-profile killings; Arjan Dass, Lalit Maken and Gen. Vaidya. He along with other members of Khalistan Commando Force (including its chief General Labh Singh) was involved in the bank robbery in Miller Gunj branch (in Ludhiana) of the Punjab National Bank in which more than Rs 5.70 crore were looted.