January 1: NITI Aayog was established to replace Planning Commission of India.

January 8-9: Annual Pravasi Bharatiya Divas conference took place in Gandhinagar.

January 9: Vistara, a Tata Sons-Singapore Airlines joint-venture airline made its first flight.

January 13: Indian Railway introduced a train that can run both on diesel and CNG.

January 14: Open water swimmer Bhakti Sharma established a record by swimming 1.4 miles in 52 minutes in 1 °C waters in the Antarctic Ocean.

January 16: Sania Mirza and Bethanie Mattek-Sands won the women's doubles title at the Sydney International.

January 26: Republic Day celebrations were held with US President Barack Obama as the chief guest.

January 31: 35th National Games began in Kerala

January 31: The Agni-V was test launched from a canister in Wheeler Island, suitable for road or rail mobile launch vehicles.

February 1: Martina Hingis and Leander Paes won the mixed doubles title at the Australian Open.

February 8: Anirban Lahiri won the Malaysian Open (golf) title.

February 10: Delhi Legislative Assembly election's results announced, Aam Aadmi Party won 67 of 70 seats.

February 15: The number of reported deaths of swine flu in India reached 585, with Rajasthan, Gujarat, Madhya Pradesh and Maharashtra being the worst-affected with reported death tolls at 165, 144, 76 and 58 respectively.

February 18: The Cabinet Committee on Security approves the construction of seven stealth frigates and six nuclear submarines for the Indian Navy.

February18- 22: The 10th edition of Aero India took place at Yelahanka Air Force Station near Bangalore.

February 22: Anirban Lahiri won the Hero Indian Open golf title.

February 22: Ranchi Rays won the Hockey India League by defeating Punjab Warriors.

February 26: Railway Minister Suresh Prabhu presented the Railway Budget in the Parliament.

February 28: Union Budget presented to the Parliament by Finance Minister Arun Jaitley.

March 3: National Electoral Roll Purification and Authentication Programme launched by the Election Commission of India.

March 14: Work on the Ahmedabad Metro began.

March 15: Srikanth Kidambi won the Swiss Open (badminton) men's singles title by defeating Viktor Axelsen.

March 17: Supreme Court of India rejected the classification of Jat people as OBC.

March 18: Beyond visual range (BVR) air-to-air missile, Astra, was successfully test fired from a Su-30MKI in test range in Chandipur.

March 19: Ratan Tata appointed head of the Kaya Kalp council of the Indian Railways. The council's aim is to introduce innovations and reforms in the public firm.

March 22: Sania Mirza and Martina Hingis won the 2015 BNP Paribas Open women's doubles title.

March 24: Indian Railways launched a pre-paid RuPay debit card for booking tickets.

March 24: Supreme Court of India declared Section 66A of the Information Technology Act, 2000 unconstitutional.

March 25: Amaravathi was announced to be name of the new capital of Andhra Pradesh, to be built near Thullur.

March 26: National Institute of Ocean Technology (NIOT) unveiled Polar Remotely Operated Vehicle (PROVe), to study the monsoon.

March 27: Bharat Ratna was awarded to former PM Atal Bihari Vajpayee.

March 28: ISRO placed Indian Regional Navigation Satellite System (IRNSS) 1-D satellite in orbit by a PSLV C-27 launch vehicle.

March 28: Saina Nehwal reached world's rank #1 in women's badminton, after Carolina Marin lost to Ratchanok Intanon.

March 29: India began to evacuate its citizens from Yemen…On 10 April, it was completed in all, about 4,640 Indians and 960 nationals from 41 other countries were evacuated.

March 29: Saina Nehwal won the India Open title by defeating Ratchanok Intanon. . . . Srikanth Kidambi won the India Open men's singles title by defeating Viktor Axelsen.

March 30: Bharat Ratna awarded to freedom fighter Madan Mohan Malaviya posthumously.

April 1: Faster Adoption and Manufacturing of Hybrid and Electric vehicles in India (FAME India) scheme was launched by the government to boost electric and hybrid vehicle sales.

April 5: Petroleum and Natural Gas Minister, Dharmendra Pradhan, launched the "Give it Up" campaign urging rich people to give up LPG subsidy.

April 5: Sania Mirza and Martina Hingis won the women's doubles title at the 2015 Miami Open.

April 8: The Padma awards were given at the Rashtrapati Bhawan. Among the 50 recipients were actor Amitabh Bachchan, Dilip Kumar, M.R. Srinivasan, mathematician Manjul Bhargava, computer scientist Vijay P. Bhatkar, Swami Satyamitranand and Aga Khan IV.

April 12: India won the bronze at Sultan Azlan Shah Cup.

April 12: Low-cost airline Air Pegasus made first flight.

April 13: Sania Mirza and Martina Hingis won the 2015 Family Circle Cup women's doubles title.

April 13: Sania Mirza reached rank one in women's double.

April 15: Sachin Tendulkar was inducted into the Laureus Sports Academy.

April 22: Indian Railways launched "utsonmobile" mobile app which would allow people to buy unreserved tickets.

April 24: Motor sports were given government recognition by including the Federation of Motor Sports Clubs of India in the list of National Sports Federations (NSFs).

May 5: The Akash missile was inducted into the Indian Army.

May 6: India and Iran signed an agreement which would allow India to develop the Port of Chabahar.

May 7: The Parliament passed the Constitution (119th Amendment) Bill, 2013. It would allow India to solve its territorial disputes with Bangladesh.

May 9: Maoists released about 250 hostages they had taken a day before in Sukma district. One hostage was killed.

May 9: PM Modi launched 3 large-scale social security schemes, Pradhan Mantri Suraksha Bima Yojana, Pradhan Mantri Jeevan Jyoti Bima Yojana, and Atal Pension Yojana, at Nazrul Mancha in Kolkata.

May 10: Rohan Bopanna and Florin Mergea won the men's double title at the 2015 Madrid Open

May 11: India nominated K. V. Kamath as the head of the New Development Bank.

May 25: Mumbai Indians won the 2015 Indian Premier League by defeating Chennai Super Kings in the final at Eden Gardens.

June 4: 20 army personnel were killed and 11 were injured in a militant attack in Manipur. The responsibility for the attack was claimed by National Socialist Council of Nagaland-Khaplang.

June 9: Indian army attacked two militant groups across the Myanmar border in retaliation for the 4 June attack.

June 21: The first International Yoga Day was held.

June 22: First commercial bus service from Kolkata to Agartala via Dhaka flagged off from Karunamoyee International Bus Stand, Kolkata.

June 26: Satnam Singh Bhamara was signed by Dallas Mavericks, making him the first Indian to be signed by an NBA team.

June 28: Jwala Gutta and Ashwini Ponnappa won the women's double title at the 2015 Canada Open badminton tournament.

June 29: Abhijeet Gupta won the Commonwealth Chess Championship by winning 7 out of 9 games and drawing 2 against Arghyadip Das.

June 29: Chennai Metro commenced operations.

June 29: India signed the legal framework of the Asian Infrastructure Investment Bank and pledged US$8.3 billion towards it.

July 1: The Digital India programme was launched by PM Modi.

July 5: India defeated Sri Lanka to retain the South Asian Basketball Association Championship title.

July 9: ISRO launched 5 UK satellites with a total payload of 1,440 kg using the PSLV-C28 launch vehicle.

July 9: Shanghai Cooperation Organisation (SCO) decided to induct India as a full member.

July 9: The Ministry of Home Affairs declared Nagaland a "disturbed" region under Armed Forces (Special Powers) Act, 1958 for one year, starting from 30 June 2015.

July 11: Sania Mirza and Martina Hingis won the women's double title at the 2015 Wimbledon Championships.

July 12: Leander Paes and Martina Hingis won the mixed doubles title at the 2015 Wimbledon Championships.

July 12: Sumit Nagal and Lý Hoàng Nam won the boy's double title at the 2015 Wimbledon Championships.

July 14: A panel appointed by the Supreme Court found Chennai Super Kings and Rajasthan Royals guilty of spot-fixing and suspended them from the Indian Premier League for two years.

July 14: Dipa Karmakar won a bronze medal at the ART Asian Gymnastics Championships.

July 21: Surakshit Khadya Abhiyan was launched to promote food safety in India.

July 23: Two Anglo-Indian members were nominated by President Pranab Mukherjee to the Lok Sabha… George Baker, actor from West Bengal, and Richard Hay, an economics professor from Kerala.

July 27: Ram Sevak Sharma was appointed the Chairman of the Telecom Regulatory Authority of India.

August 2: Joshna Chinappa won the 2015 Women's Victorian Open squash tournament by defeating Line Hansen.

August 10: Rajasthan High Court declared the Jain ritual called Santhara to be illegal.

August 13: Pankaj Advani won the Six-red World Championship after defeating Ng On Yee of Hong Kong.

August 18: Cochin International Airport became fully-solar powered.

August 26: Demonstrations demanding reservations for the Patel community began in Gujarat.

August 27: ISRO successfully launched GSAT-6 using the GSLV D-6 launch vehicle.

September 1: Railway Minister Suresh Prabhu flagged off first train after gauge conversion on Sikar Loharu route.

September 5: Vikas Krishan Yadav won a silver at the 2015 Asian Amateur Boxing Championships.

September 13: Narsingh Pancham Yadav won a bronze at the 2015 World Wrestling Championships, qualifying for the Rio Olympics.

September 14: Department of Industrial Policy and Promotion (DIPP) released a report ranking the states on ease of doing business and regulatory reforms.

September 16: The central government banned the National Socialist Council of Nagaland (Khaplang) for five years.

September 20: Ajay Jayaram won a silver at the Korea Open.

September 25: Deepika Kumari won a silver at the 2015 Archery World Cup in the recurve event.

September 26: Sania Mirza and Martina Hingis won the women's double title at the Guangzhou International Women's Open.

September 27: Pankaj Advani won the 2015 IBSF World Billiards Championship by defeating Peter Gilchrist in a timed match.

September 28: India's first space observatory Astrosat was launched.

September 30: At the 2015 Asian Air Gun Championship, Heena Sidhu won gold in the women's 10m air pistol event. Shweta Singh won silver in the marquee event. Heena, Shweta and Yashaswini Singh Deshwal won the team women's 10m air pistol team event.

October 2: Environment Minister Prakash Javadekar announced India's Intended Nationally Determined Contributions for the United Nations Framework Convention on Climate Change. It set a target of reducing its emission intensity by 33-35%, by 2030 from 2005 levels.

October 10: Sania Mirza and Martina Hingis won the women's double title at the 2015 China Open.

October 11: Punjab National Bank won the Beighton Cup.

October 12-22: India and China conducted joint anti-terror drills in Kunming, China.

October 15: Zaheer Khan announced retirement from international cricket.

October 16: Maharashtra declared that 14,708 of its 40,053 villages were facing drought-like conditions.

October 16: Telecom Regulatory Authority of India (TRAI) mandated that the telecom operator will have to pay for each dropped call to the subscriber, from 1 January 2016 onward.

October 16: The Supreme Court of India declared National Judicial Appointments Commission (NJAC) to be unconstitutional.

October 20: The Government of Maharashtra invoked the Maharashtra Prevention of Dangerous Activities of Slumlords, Bootleggers, Drug Offenders and Dangerous Persons Act, 1981, and Maharashtra Control of Organised Crime Act, 1999 against hoarders of pulses and edible oil.

October 20: Virender Sehwag announced retirement from international cricket.

October 21: Home Minister Rajnath Singh inaugurated the Indian Police Foundation (IPF) and the Indian Police Institute (IPI) in New Delhi.

October 22: PM Modi laid the foundation stone of Amaravati, the new capital of Andhra Pradesh.

October 24: Ministry of Defence approved the induction of women as combat pilots in the Indian Air Force.

October 26: The third India–Africa Forum Summit began in New Delhi.

October 27: Finance Minister Arun Jaitley launched the e-Sahayog of the Income Tax Department.

October 3: Sania Mirza and Martina Hingis won the 2015 Wuhan Open women's doubles title.

October 31: Michael Kueffer finished first in the Paragliding World Cup held in Bir, Himachal Pradesh.

October 31: The birth anniversary of Sardar Vallabhbhai Patel was observed as Rashtriya Ekta Diwas (National Unity Day).

October15 - 19: India, US and Japan conducted the 19th Exercise Malabar in the Bay of Bengal.

November 26: Samvidhan Divas (Constitution Day) to be observed.

December 22: The Beechcraft King Air plane chartered by BSF crashed on take-off near the Delhi airport killing 10 people.