Census 2011 (Static Information)
- First census in India: 1872 (Viceroy Lord Mayo).
- First decennial census: 1881 (Viceroy Lord Ripon).
- First Census Commissioner of India: W.C. Plowden.
- 2011 Census: 15th overall, 14th decennial, 7th post-independence.
- "Great Divide" year: 1921 (negative population growth).
- 2011 Census Commissioner: C. Chandramouli.
- 2011 Census Motto: "Our Census, Our Future."
- India's 2011 population: 121.09 crore (2nd globally).
- Decadal growth rate (2001-2011): 17.7%.
- Population gender ratio: Males 51.47%, Females 48.53%.
- State-wise Demographics:
- Area: Largest - Rajasthan, Smallest - Goa.
- UT Area: Largest - Ladakh, Smallest - Lakshadweep.
- Population (Highest): Uttar Pradesh (16.51%), Maharashtra, Bihar, West Bengal.
- Population (Lowest): Sikkim (0.05%), Mizoram, Arunachal Pradesh, Goa.
- Decadal Growth (Highest): Meghalaya (27.9%).
- Decadal Growth (Lowest): Nagaland (-0.6%) - only state with negative growth.
- Population Density (India): 382 persons/km².
- Population Density (Highest): Bihar (1106 persons/km²).
- Population Density (Lowest): Arunachal Pradesh (17 persons/km²).
- Overall Population Density (Highest): Delhi (higher than Bihar).
- Sex Ratio (India): 943 females/1000 males.
- Sex Ratio (Highest): Kerala (1084) - only state >1000.
- Sex Ratio (Lowest): Haryana (879).
- Child Sex Ratio (0-6 years, Highest): Arunachal Pradesh (972).
- Child Sex Ratio (0-6 years, Lowest): Haryana (834).
- Literacy Rate (India): 73% (Male: 80.09%, Female: 64.60%).
- Literacy Rate (Highest): Kerala (94%).
- Literacy Rate (Lowest): Bihar (61.80%).
- Rural Population (as % of state pop, Highest): Himachal Pradesh (90%).
- Urban Population (as % of state pop, Highest): Goa (62.2%).
- Urban Population (by number, Highest): Maharashtra (5.08 crore).
- SC Population (by number, Highest): Uttar Pradesh (5.25 crore).
- SC Population (by % of state pop, Highest): Punjab (31.9%).
- ST Population (by number, Highest): Madhya Pradesh (1.5 crore).
- ST Population (by % of state pop, Highest): Mizoram (94%).
International Rankings & Indices
- WDMMA (World Directory of Modern Military Aircraft) 2025 True Well Ranking: Indian Air Force ranked 6th globally, surpassing China (7th). Pakistan ranked 18th. Overall WDMMA ranking: USA 1st, Russia 2nd, India 3rd.
- Global Pension Index: India ranked 52nd.
- Other India Rankings: Innovation (38), Competitiveness (41), Peace (115), Hunger (102), Happiness (118), Press Freedom (151), Corruption Perception (96), Energy Transition (71), Global Gender Gap (131), Human Development (130), Henley Passport (85), SDG (99).
Defense & Security
- Flamingo Missile: Ukraine tested the first indigenous long-range cruise missile, Flamingo.
- Ofek 19 Satellite: Israel launched the Ofek 19 spy satellite using a Shavit rocket.
- India-EU Counter-Terrorism Exercise: First joint drone-focused counter-terrorism exercise between India and the European Union was held in Manesar, Haryana.
- Open Sky Exercise: India (Indian Air Force) participated for the first time as a non-NATO country in NATO's Open Sky Exercise in Spain.
- SAMBHAV System: Messaging system used by the Indian Army.
- Indigenous Anti-Submarine Warfare Shallow Water Craft (ASW-SWC): INS Mahe, the first indigenous ASW-SWC, built by CSL Kochi, was inducted into the Indian Navy.
- Anti-Submarine Warship: INS Androth (and Arnala) were inducted into the Indian Navy.
- Combined Commanders Conference 2025: Inaugurated in Kolkata by PM Modi.
- Book: Civil Military Fusion: Authored by Lt. Gen. Raj Shukla and released by Defense Minister Rajnath Singh.
Science & Technology
- Space City & Defense Centers: Andhra Pradesh to establish a Space City and two Defense Centers in Tirupati.
- Indigenous Antibiotic: India developed its first indigenous antibiotic, Nefrithomycin, for respiratory infections, a joint effort by India's Biotechnology Department and Wockhardt.
- ISRO Agreement: ISRO signed an agreement with Hindustan Aeronautics Limited (HAL) for small satellite launch vehicle technology.
- National Policy on Geothermal Energy: Ministry of New and Renewable Energy unveiled the first national policy on geothermal energy.
Appointments & Awards
- Indian Cricketers Association President: Shantaharanga Swamy became the first female cricketer appointed President.
- Bahrain Commercial Court Judge: Dr. Pinky Anand was appointed as a judge in the Bahrain International Commercial Court.
- Winter Olympics 2026 Torchbearer: Abhinav Bindra will be the torchbearer for the Indian team at the Winter Olympics 2026 in Milan Cortina, Italy.
- P.V. Narasimha Rao Award for Economics: Awarded posthumously to Manmohan Singh.
- British Academy Book Prize: Sunil Amrit won for his book "The Burning Earth."
- BRICS International Award: Abu Sufiyan (Russia) received the award.
- Emmy Award: Barack Obama received his third Emmy Award for "Our Oceans" documentary.
- Swachh Vayu Sarvekshan Award: Indore topped the category of cities with over 10 lakh population.
- Chess Grandmaster: Abhimanyu Mishra became the youngest Grandmaster to defeat world champion Gukesh.
- WADA Vice-President: India was appointed Vice-President for the Asia Pacific region (2025-2027) at the WADA COP10 meeting in Paris.
Environmental & Social Initiatives
- IUCN 90th Member: Tuvalu became the 90th member of IUCN. India issued its first National Red List Roadmap (2025-2030) at the October 2025 IUCN meeting in Abu Dhabi.
- Ceramic Waste Park: World's first ceramic waste park established in Khurja, Uttar Pradesh.
- Bamboo-based Bio-refinery: Engineers India Limited started India's first bamboo-based bio-refinery in Assam.
- Sustainable Energy Center: Coal India and IIT Madras signed an MoU to establish a Sustainable Energy Center, targeting India's net-zero carbon emission goal by 2070.
- "23 for 23" Initiative: Launched on Snow Leopard Day (Oct 23) to conserve snow leopard habitats for 23 minutes daily.
Sports
- Sultan Johor Cup: Indian Junior Men's Hockey team won Silver Medal (runners-up) in Sultan Johor Cup (Malaysia), lost to Australia.
- Asian Youth Games 2025: To be held in Bahrain (Manama).
- IFA Shield Cup (Football): Held in Kolkata, Mohun Bagan won against East Bengal.
- Liverpool World Boxing Championship: Jasmin and Meenakshi won gold in the 57 kg category.
- FIDE Grand Swiss Tournament 2025 (Women's): Won by Vaishali Ramesh Babu.
- Women's Hockey Asia Cup: India was runner-up, lost to China.
Miscellaneous
- AI Minister: Albania became the first country to appoint an AI minister, "Dyala."
- IIM Ahmedabad International Campus: First international campus launched in Dubai.
- Literacy: Himachal Pradesh became the 4th fully functionally literate state.
- Ramanujan Research Fellowship: India and the UK jointly launched this fellowship for young Indian scientists.
- Indigenous Vaccine - Adalfa C Vac: Licensed for malaria.
- New York Declaration: Related to peaceful resolution of the Palestine issue.
- Project Arunank: Completed 18 years on October 24, 2025. Started in 2008 by BRO for road/bridge construction in Arunachal Pradesh.
- Commemorative Coin: RBI released a ₹100 commemorative coin on Bhupen Hazarika's birth centenary.
- Fastest Train: Namo Bharat (Delhi-Meerut RRTS) became India's fastest train (160 km/h).
- POSH Act Exclusion: Supreme Court excluded political party offices from the POSH (Prevention of Sexual Harassment) Act.
- President Droupadi Murmu at Sabarimala: Became the first female President to offer prayers at Sabarimala Temple.
Important Days (October)
- World Polio Day: October 24.
- UN Day: October 24.
- ITBP Raising Day: October 24, 1962.
- Snow Leopard Day: October 23.
- International Democracy Day: September 15.
Organisations/Regions Latest Members
- SCO: Belarus (10th member).
- BRICS: Indonesia (10th member).
- NATO: Sweden (32nd member).
- EU: 27 members (post-Brexit), 21 adopted Euro (Bulgaria latest).