1966 in India
Events in the year 1966 in the Republic of India. Incumbents

Governors

Events
National income - 321,058 million

January - May 
 3 January – Prime Minister of India Lal Bahadur Shastri and President of Pakistan Ayub Khan agree to the Tashkent Declaration, a peace pact mediated by the Soviet Premier Alexei Kosygin in Tashkent, Uzbek S.S.R. 11 January – Prime Minister Shastri dies of heart attack in Tashkent. 19 January – Supported by provincial Congress chief ministers, Indira Gandhi becomes prime minister. 24 January - Air India Flight 101 crashed into Mont Blanc killing the 117 passengers including Homi J. Bhabha who was in the flight. There was a similar aviation accident in the same spot in 1950. 5 March - Indian Air Force bombs Aizawl following Mizo National Front uprising. 28 March – Indira Gandhi visits Washington, D.C.

June - December 
 6 June - First Indira Gandhi ministry devalues Indian rupee by 57%. 10 June - President of India promulgates Jayanti Shipping Company (Taking Over of Management) Ordinance, 1966 to take over shipping company owned by Jayanti Dharma Teja. 19 June: Shiv Sena founded by Bal Thackeray. 12 July – Indira Gandhi visits Moscow. 7 November - 1966 anti-cow slaughter agitation and ensuing violence took place. 17 November – Reita Faria, [Eve's Weekly Miss India] is crowned Miss World 1966, the first Indian to win the title. Law
 27 August – Eighteenth Amendment of the Constitution of India takes effect. 11 December – Nineteenth Amendment of the Constitution of India takes effect. 22 December – Twentieth Amendment of the Constitution of India takes effect. 29 December – Enactment of Seeds Act, creating central administration to oversee and certify seeds. Sport
 Krishan Lal, (field hockey player) is awarded the Padma Shri. Births
 3 January – Chetan Sharma, cricketer
 11 January – Sunil Kumar Mahato, politician, assassinated (d.2007). 22 January - Kesineni Srinivas, politician and member of parliament from Vijayawada. 28 January – Anjani Kumar, 1990 batch IPS officer
 22 February – Babu Antony, actor and martial artist. 24 March - Galla Jayadev, politician and member of parliament from Guntur. 30 March  Vikraman, film director. 17 April – Vikram, actor. 3 May – Firdous Bamji, actor. 30 May – Rajinder Garg, politician. 8 July  Revathi, actress. 14 July – Sachin Puthran, entrepreneur. 28 August – Priya Dutt, politician. 1 September - Sonam Wangchuk, Indian engineer, innovator and education reformist. 24 October  Nadhiya, actress. 30 October – K. V. Anand, cinematographer and film director (d. 2021)
 28 November – P. Ravi Shankar, actor, dubbing artist, director and writer. 5 December – Dayanidhi Maran, politician. Full date unknown
 Raj Kamal Jha, novelist and journalist. September – Faisal Khan, actor. Deaths
 11 January – Lal Bahadur Shastri, politician and 2nd Prime Minister of India (b. 1904). Devarakonda Balagangadhara Tilak, poet, novelist and short story writer (b. 1921). 24 January – Homi J. Bhabha, Indian nuclear physicist. 26 February - Vinayak Damodar Savarkar, Indian Freedom Fighter (b. 1883). 