January:
3 January – 7 January: 100th Indian Science Conference at Kolkata
6 January: India–Pakistan border incidents begin
12 January:Swami Vivekananda's 150th birthday was celebrated.
14 January: Kumbh Mela began in Allahabad.
31 January: 2013 Women's Cricket World Cup begin in Mumbai
February :
From 31 January to 3 February: India Stone Mart 2013 in Jaipur
12 February: Indian helicopter bribery scandal came to light
15 February: 2012 DA 14 asteroid passes by the Earth
14–21 February: 2013 South Asian Games in Delhi
21 February: Terror attacks on Hyderabad (India) in Dilsukhnagar area
March :
8 March: Anti-Sri Lanka protests by Students Federation for Freedom of Tamil Eelam in Tamil Nadu
10 March: Kumbh Mela ends
27 March: Tamil Nadu Assembly Resolution on Sri Lanka for formation of Tamil Eelam.
April :
3 April: 2013 Indian Premier League season begin
15 April: Daulat Beg Oldi patrols conflict.
May:
26 May: 2013 Indian Premier League finals
July:
3–7 July: 2013 Asian Athletics Championship continental tournament, winner China with 15 gold medals
September:
13 September : Narendra Modi anointed Bharatiya Janata Party's prime ministerial candidate for Indian general election, 2014.[
29 September: India beat Malaysia 3-0 to win Sultan of Johor Cup (Under 21)
30 September :Ex-Bihar Chief Minister Lalu Prasad Yadav convicted in fodder scam case.
November :
5 November: The Mars Orbiter Mission (MOM), was successfully launched into Earth orbit by the Indian Space Research Organisation (ISRO).
6 November - 26 November: World Chess Championship 2013 to be held in Chennai
7 november: A herd of 40 elephants is struck by a passenger train.
December:
1–14 December: 2013 Kabaddi World Cup was to be held in India. Host city is Bathinda
6–15 December: 2013 Men's Hockey Junior World Cup was to be held in India. Host city is New Delhi
India – Sri Lanka HVDC Interconnection from Madurai, Tamil Nadu, India to Anuradhapura in Sri Lanka