The anti-Sikh riots, often termed the 1984 Sikh genocide by victim groups, erupted after Prime Minister Indira Gandhi was shot dead on the morning of 31 October 1984 by her two Sikh bodyguards, Satwant Singh and Beant Singh. The assassination was itself a reprisal for Operation Blue Star (June 1984), the Indian Army's storming of the Harmandir Sahib (Golden Temple) complex in Amritsar to flush out the militant leader Jarnail Singh Bhindranwale. Within hours of Gandhi's death, mobs targeted Sikhs in Delhi, Kanpur, Bokaro and other cities, burning homes and gurdwaras and killing Sikh men by "necklacing" with burning tyres. The official toll placed the dead at roughly 2,733 in Delhi alone and over 3,350 nationwide, though independent estimates run higher.
The violence was distinguished from a spontaneous riot by its evident organisation: mobs carried voter lists and ration records to identify Sikh households, were supplied with kerosene and iron rods, and acted while the Delhi Police remained passive. Several Congress (I) politicians — names raised across inquiries include Sajjan Kumar, Jagdish Tytler and H.K.L. Bhagat — were accused of inciting and leading mobs. The state response was captured in Rajiv Gandhi's infamous remark that "when a big tree falls, the earth shakes." Successive bodies probed the events: the Marwah Commission (1984), the Misra Commission (1986), the Jain–Aggarwal Committee, the Nanavati Commission (report submitted 2005), and later the Justice G.P. Mathur committee and a Special Investigation Team (SIT) constituted in 2015.
Justice delayed defined the aftermath. The Nanavati Commission's 2005 report led to Tytler's resignation but few convictions for decades. A landmark came on 17 December 2018, when the Delhi High Court convicted Sajjan Kumar and sentenced him to life imprisonment, overturning his earlier acquittal and holding the killings to be "crimes against humanity" by a mob acting with state patronage. As of 2026, prosecutions and reopened cases continue, and the episode remains a touchstone in debates on communal violence, command responsibility, and impunity. It is also cited in arguments for a dedicated law against targeted mass violence and for police reform separating law enforcement from political control.
For the UPSC examination, the riots appear principally in GS Paper I (Indian Society — communalism, regionalism, secularism) and GS Paper II (governance, accountability of the executive, role of inquiry commissions). Typical question angles ask candidates to analyse the failure of state institutions during communal violence, to compare 1984 with later episodes such as Gujarat 2002, or to evaluate why successive commissions failed to deliver timely justice. Essay and ethics papers (GS IV) may invoke it to discuss administrative neutrality, the duty of civil servants and police during mass violence, and the moral cost of political complicity. Candidates should pair the factual sequence — Blue Star, assassination, riots, commissions, 2018 conviction — with structural critique.
Example
In December 2018, the Delhi High Court convicted Congress leader Sajjan Kumar and sentenced him to life imprisonment for orchestrating killings of Sikhs in Delhi's Raj Nagar during the November 1984 violence.
Frequently asked questions
The riots began on 31 October 1984 after Prime Minister Indira Gandhi was assassinated by her two Sikh bodyguards. The assassination was a reprisal for Operation Blue Star, the June 1984 army action at the Golden Temple.