| 3-October-1831 |
| Britishers captured Mysore. |
| 3-October-1880 |
| Sakuntal Sangeet held in Anandodbhav Auditorium in Pune. Annasaheb Kirloskar presented the first musical play in Marathi. |
| 3-October-1890 |
| Laxminarayan Sahu, litterateur, journalist and social reformer, was born. |
| 3-October-1903 |
| Swami Ramanand Tirth, politician and educationist, was born. |
| 3-October-1906 |
| Govind Vinayak Devansthali, Sanskrit researcher, dictionary creator, professor and journalist, was born in Bombay. |
| 3-October-1907 |
| Mansukhlal Maganlal Zaveri, famous Gujrati poet and critic, was born. |
| 3-October-1913 |
| Sudangsu Abinash Banerjee, 'Montu', cricketer, (5 wickets, 1 test vs West Indies) was born in Calcutta. |
| 3-October-1950 |
| India protests U.N. troops' crossing of 38th parallel in New York. |
| 3-October-1957 |
| Republican Party of India established. |
| 3-October-1977 |
| Indira Gandhi arrested on charges of official corruption in New Delhi. |
| 3-October-1978 |
| Dr. Subhas Mukhopadhyay claimed the credit of India's first and the birth of world's second test-tube baby Durga Agrawal, who was born in Belle Vue Nursing Home in Calcutta. |
| 3-October-1984 |
| India's longest distance train Himsagar Express (from Jammu Tavi to Kanya Kumari) was first flagged. |
| 3-October-1985 |
| Morocco breaks diplomatic relations with India after New Delhi announced its recognition of the Saharwi Arab Democratic Republic. |
| 3-October-1988 |
| Lebanese kidnappers release Mithileshwar Singh after 30 months of being held captive. |
| 3-October-1991 |
| Ganpatrao Tapase, former Governor of Haryana and Uttar Pradesh, died. |
| 3-October-1992 |
| Geet Sethi beats holder Mike Russel of Britain (2529-718) to become the first Indian to win the World Professional Billiards championship in Bombay. |
| 3-October-1994 |
| Bhushan Tiwari, famous Hindi film actor of yesteryears, died. |
| 3-October-1996 |
| National Conference swept back to power in J & K with a landslide victory. |
| 3-October-1996 |
| Second phase of UP polling. |
| 3-October-1997 |
| Devi Lal floats a new party 'Haryana Lok Dal'. |
| 3-October-1997 |
| Financial and operational autonomy to be given to 97 profit-making public sector enterprises ('mini-ratnas') other than the navaratnas. |
| 3-October-1999 |
| Insp N Gojen Singh won a 'silver' medal in 10,000 m. race and 6th position in 5,000 m. race in the 8th Asian Junior Athletic Championship ( International Level) held at Singapore. |
| 3-October-1999 |
| India finished with seven silver and four bronze medals in the Asian Junior Athletic Championship in Singapore. |
| 3-October-2000 |
| India and Russia sign a declaration on strategic partnership. |
| 3-October-2000 |
| Prime Minister Atal Behari Vajpayee buys peace with the Trinamool Congress chief Mamata Banerjee by agreeing to a partial rollback of the hike in prices of petroleum products. |