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.
Sukhdev Singh was born in Chak N: 11 F, Tehsil Karanpur, Distt Ganganagar, Rajasthan. His parents, Mengha Singh and Surjeet Kaur were farmers.
He did his early schooling from village Manakpur. He received his BA from Gian Joti College and was studying in MA English when Operation Bluestar occurred. He also left his studies and joined the Khalistan separatist movement.
Harjinder Singh Jinda and Sukhdev Singh Sukha along with Ranjit Singh Gill gunned down Congress(I) Member of Parliament Lalit Maken on July 31, 1985, when he was moving towards his car parked across the road from his house in Kirti Nagar, New Delhi. The three assailants continued firing even as Maken ran towards his house for cover. Maken's wife Geetanjali and a visitor, Balkishan, were also caught in the firing. The assailants escaped on their scooters. Lalit Maken was considered to be involved in the killings of Sikhs during 1984 Anti-Sikh riots. In a 31-page booklet titled 'Who Are The Guilty', People's Union for Civil Liberties (PUCL) listed 227 people who led the mobs, which killed up to 3,000 Sikhs over three days. Lalit Maken's name was third on the list . Ranjit Singh "Gill" was arrested by Interpol in New Jersey, USA on May 14 1987, he was deported back to india in May 1997 after lengthy legal cases and was sentenced to life imprisonment on February 24 2003.
General Arun Vaidya was the Chief of the Indian Army who ordered the attack on the holiest of the Sikh shrines at Amritsar and elsewhere in Punjab during Operation Bluestar. He had moved to Pune after his retirement from the army. On August 10, 1986 General Arun Vaidya, the architect of Operation Bluestar was shot to death by Jinda and Sukha while he was driving his car home from the market. According to the police, the assailants pulled up next to his car on motor scooters and fired eight or nine shots into the car. Vaidya reportedly died instantly of head and neck wounds. His wife, who was also in the car, was wounded by four bullets in her back and thighs. According to Indian intelligence sources, Vaidya had been the number four assassination target on lists by Sikh militants and he was one of several people killed in retaliation for Operation Blue Star. Following the assassination, the Khalistan Commando Force issued a statement declaring that Vaidya had been killed in retaliation for the Golden Temple operation.
Congress (I) leader Arjan Dass was also assassinated by the duo because of his involvement in 1984 Anti-Sikh riots. Arjan Dass's name appeared in various affidavits submitted by innocent Sikh victims to Nanavati Commission which was headed by Justice G.T. Nanavati, retired Judge of the Supreme Court of India .
On September 17, 1986, Sukha got into an accident with a truck in Pimpri, Pune and was arrested. He was riding the same black motorcycle which was used at the time of assassination of General Vaidya.Jinda got arrested at Gurdwara Majnoo Daa Tilla, Delhi in March, 1987. He was shot in the legs at the time of his arrest. During their court trial, despite admitting to the killing, they pled not-guilty, justifying their actions by saying that Vaidya was "guilty of a serious crime, the punishment for which could only be death". They were awarded death sentences at 2:05 pm on October 21, 1989. On October 9, 1992, early in the morning, Sukhdev Singh "Sukha" and Harjinder Singh "Jinda" were hanged until death in Pune Jail. Their dead bodies were cremated on the same day at 6:20 am near Moola river.
On October 9, 2008, Shiromani Gurdwara Prabandhak Committee honoured kin of Jinda and Sukha in the Golden Temple complex, to mark their death anniversary. SGPC declared Jinda and Sukha ‘martyrs of Sikh community' and added that Jinda and Sukha took revenge of Operation Bluestar.