महत्वपूर्ण दिवस और तिथियाँ

हिंदी में पढ़ें

Important Days & Dates — A Calendar That Lives in Your Head

◆ Why is India's Republic Day on 26 January and not on 26 November, the day the Constitution was adopted in 1949? Because of a promise. At its Lahore session in December 1929 the Congress demanded Purna Swaraj (complete independence), and on 26 January 1930 Indians across the country celebrated it as "Independence Day". Twenty years later the makers of the Constitution chose the same date to bring the Constitution into force — 26 January 1950. So one date carries two stories, and 26 November got its own name too: Constitution Day. That is the secret of this chapter: every date has a story. Learn the story, and the date stays with you.

What you will learn (learning objectives)

The three national festivals and the "story" behind each important national day

Days that honour great Indians — whose birthday is which day

Defence and security days — Army, Navy, Air Force, Coast Guard, Police

International days of the UN, WHO, UNESCO and other bodies — month by month

The look-alike pairs that examiners love (Hindi Day vs World Hindi Day, Teachers' Day vs World Teachers' Day, and more)

Simple tricks to remember them, and the traps to avoid

1. Two kinds of "days" — the master key

Almost every day in this chapter belongs to one of two families:

Person days — the birth (sometimes death) anniversary of a great person. Example: 5 September, Teachers' Day, is the birthday of Dr Sarvepalli Radhakrishnan.

Event days — the anniversary of an event, a discovery, a law, or the founding of an organisation. Example: 7 April, World Health Day, is the day the World Health Organization (WHO) was founded in 1948.

Most Indian national days are person days. Most international days are event days. When you see a date, first ask: "Whose birthday?" or "What happened on this day?" That one question opens most answers.

🧠 Active Recall: Is 28 February (National Science Day) a person day or an event day? (Event day — C. V. Raman discovered the Raman Effect on 28 February 1928. Raman's birthday is a different date.)

2. The three national festivals

Republic Day — 26 January: the Constitution came into force in 1950.
Independence Day — 15 August: India became free in 1947.
Gandhi Jayanti — 2 October: birth anniversary of Mahatma Gandhi (born 1869). The UN also observes 2 October as the International Day of Non-Violence (declared by the UN General Assembly in 2007).

Constitution Day (Samvidhan Divas) — 26 November: the Constituent Assembly adopted the Constitution on 26 November 1949. The Government of India declared it Constitution Day in November 2015 (the 125th birth anniversary year of Dr B. R. Ambedkar).

3. Days that honour great Indians (person days)

January
12 January — National Youth Day: Swami Vivekananda's birth anniversary (born 1863). Declared in 1984, observed since 1985.
23 January — Parakram Diwas: Netaji Subhas Chandra Bose's birth anniversary (born 1897). Declared in January 2021.
30 January — Martyrs' Day (Shaheed Diwas): Mahatma Gandhi was assassinated on 30 January 1948.

Spring and summer
14 April — Ambedkar Jayanti: Dr B. R. Ambedkar's birth anniversary (born 1891).
29 June — Statistics Day: birth anniversary of P. C. Mahalanobis (born 1893), father of Indian statistics. Notified in 2007.
1 July — National Doctors' Day: birth and death anniversary of Dr Bidhan Chandra Roy, former Chief Minister of West Bengal.

August–September
29 August — National Sports Day: birth anniversary of hockey legend Major Dhyan Chand (born 1905).
5 September — Teachers' Day: birth anniversary of Dr Sarvepalli Radhakrishnan (born 1888), India's second President.
15 September — Engineers' Day: birth anniversary of Sir M. Visvesvaraya (born 1861).

October–December
31 October — Rashtriya Ekta Diwas (National Unity Day): Sardar Vallabhbhai Patel's birth anniversary (born 1875). Observed since 2014.
11 November — National Education Day: birth anniversary of Maulana Abul Kalam Azad (born 1888), India's first Education Minister. Observed since 2008.
14 November — Children's Day (Bal Diwas): Jawaharlal Nehru's birth anniversary (born 1889).
15 November — Janjatiya Gaurav Divas: Bhagwan Birsa Munda's birth anniversary. Declared by the Union Cabinet in November 2021.
26 November — National Milk Day: birth anniversary of Dr Verghese Kurien, father of the White Revolution.
22 December — National Mathematics Day: Srinivasa Ramanujan's birth anniversary (born 1887). Announced in December 2011, observed from 2012.
23 December — Kisan Diwas (National Farmers' Day): birth anniversary of former Prime Minister Chaudhary Charan Singh.
25 December — Good Governance Day: birth anniversary of former Prime Minister Atal Bihari Vajpayee. Observed since 2014.
26 December — Veer Baal Diwas: martyrdom of Sahibzada Zorawar Singh and Sahibzada Fateh Singh, the younger sons of Guru Gobind Singh. Announced on 9 January 2022.

Mnemonic — "Youth at 12, Bose at 23, Gandhi at 30": the three big January person days, in order: 12 (Vivekananda), 23 (Netaji), 30 (Gandhi).

🧠 Active Recall: Whose birthdays fall on 31 October, 11 November and 14 November? (Sardar Patel, Maulana Azad, Jawaharlal Nehru.)

4. Days that mark events (Indian event days)

9 January — Pravasi Bharatiya Divas: Mahatma Gandhi returned to India from South Africa on 9 January 1915. Celebrated since 2003.
25 January — National Voters' Day: the Election Commission of India was founded on 25 January 1950. Observed since 2011. (25 January is also National Tourism Day.)
24 January — National Girl Child Day: started in 2008 by the Ministry of Women and Child Development.
28 February — National Science Day: discovery of the Raman Effect (28 February 1928). Declared in 1986, first celebrated in 1987.
5 April — National Maritime Day: in 1919 the ship SS Loyalty of the Scindia Steam Navigation Company sailed from Mumbai to London — a landmark for Indian shipping.
21 April — Civil Services Day: on 21 April 1947 Sardar Patel addressed the first batch of officers at Metcalfe House, Delhi, and called the civil services the "steel frame of India".
24 April — National Panchayati Raj Day: the 73rd Constitutional Amendment came into force on 24 April 1993.
11 May — National Technology Day: the Pokhran nuclear tests of 11 May 1998.
21 May — Anti-Terrorism Day: former Prime Minister Rajiv Gandhi was killed on 21 May 1991.
7 August — National Handloom Day: the Swadeshi Movement was launched on 7 August 1905 in Calcutta. First celebrated in 2015 (Chennai).
14 August — Partition Horrors Remembrance Day (Vibhajan Vibhishika Smriti Diwas): declared on 14 August 2021.
23 August — National Space Day: Chandrayaan-3's Vikram lander touched down near the Moon's south pole on 23 August 2023. First observed on 23 August 2024.
14 September — Hindi Diwas: on 14 September 1949 the Constituent Assembly adopted Hindi in the Devanagari script as the official language of the Union.
14 December — National Energy Conservation Day.
24 December — National Consumer Day: the Consumer Protection Act, 1986 received the President's assent on this day.

History dates that are asked as "days":
13 April 1919 — Jallianwala Bagh massacre, Amritsar.
23 March 1931 — Bhagat Singh, Rajguru and Sukhdev were hanged in Lahore jail; 23 March is also remembered as Shaheed Diwas.
9 August — August Kranti Diwas: the Quit India Movement began in August 1942 (resolution passed at Bombay on 8 August; mass movement from 9 August).

🧠 Active Recall: Which day comes from a scientific discovery and which from a nuclear test? (28 February — Raman Effect; 11 May — Pokhran 1998.)

5. Defence and security days

15 January — Army Day: on 15 January 1949 General (later Field Marshal) K. M. Cariappa took over as the first Indian Commander-in-Chief of the Indian Army.
1 February — Indian Coast Guard Day: the Coast Guard was raised on 1 February 1977.
26 July — Kargil Vijay Diwas: victory in Operation Vijay, Kargil, 1999.
8 October — Indian Air Force Day: the Air Force was set up on 8 October 1932.
21 October — Police Commemoration Day: ten policemen were killed by Chinese troops at Hot Springs, Ladakh, on 21 October 1959.
4 December — Navy Day: Operation Trident, the Navy's attack on Karachi harbour in the 1971 war.
7 December — Armed Forces Flag Day: observed since 1949.
16 December — Vijay Diwas: victory in the 1971 war; the Pakistani army surrendered in Dhaka and Bangladesh was born.

Mnemonic — "Army Jan, Air Oct, Navy Dec — 15, 8, 4": the three services, in the order of the calendar, with dates getting smaller: Army 15 January, Air Force 8 October, Navy 4 December.

🧠 Active Recall: Kargil Vijay Diwas or Vijay Diwas — which is in December? (Vijay Diwas, 16 December — the 1971 war. Kargil Vijay Diwas is 26 July — 1999.)

6. International days — month by month

Most of these are fixed by the United Nations (UN) or one of its agencies.

January–February
2 February — World Wetlands Day: the Ramsar Convention was signed at Ramsar, Iran, on 2 February 1971.
4 February — World Cancer Day.
21 February — International Mother Language Day: proclaimed by UNESCO in November 1999, observed since 2000. It remembers students killed in Dhaka on 21 February 1952 while demanding recognition for Bangla.

March
3 March — World Wildlife Day: the CITES convention was signed on 3 March 1973.
8 March — International Women's Day.
15 March — World Consumer Rights Day.
21 March — International Day of Forests.
22 March — World Water Day (first observed in 1993).
23 March — World Meteorological Day: the World Meteorological Organization's convention came into force on 23 March 1950.
24 March — World Tuberculosis (TB) Day: Robert Koch announced the discovery of the TB germ on 24 March 1882.

April–May
7 April — World Health Day: WHO was founded on 7 April 1948.
18 April — World Heritage Day (International Day for Monuments and Sites).
22 April — Earth Day (first held in 1970).
23 April — World Book and Copyright Day (UNESCO).
1 May — International Labour Day (May Day). Also Maharashtra Day and Gujarat Day (both states formed on 1 May 1960).
3 May — World Press Freedom Day.
8 May — World Red Cross Day: birth anniversary of Henry Dunant, founder of the Red Cross.
12 May — International Nurses Day: birth anniversary of Florence Nightingale.
17 May — World Telecommunication and Information Society Day: the ITU was founded on 17 May 1865.
22 May — International Day for Biological Diversity.
31 May — World No Tobacco Day (WHO).

June–July
1 June — World Milk Day (FAO).
5 June — World Environment Day: decided at the UN Conference on the Human Environment, Stockholm, 1972; first observed in 1973.
8 June — World Oceans Day.
14 June — World Blood Donor Day: birth anniversary of Karl Landsteiner, who discovered the ABO blood groups.
21 June — International Day of Yoga: proposed by India, declared by the UN General Assembly on 11 December 2014; first observed on 21 June 2015. 21 June is the longest day of the year in the Northern Hemisphere (summer solstice).
26 June — International Day against Drug Abuse and Illicit Trafficking.
11 July — World Population Day: started by the UNDP Governing Council in 1989; inspired by the "Day of Five Billion", 11 July 1987.
29 July — International Tiger Day: agreed at the Tiger Summit, St Petersburg, 2010.

August–September
6 August — Hiroshima Day (atomic bombing, 1945). 9 August — Nagasaki Day.
12 August — International Youth Day (UN).
8 September — International Literacy Day: proclaimed by UNESCO in 1966, first observed in 1967.
16 September — International Day for the Preservation of the Ozone Layer: the Montreal Protocol was signed on 16 September 1987.
21 September — International Day of Peace.
27 September — World Tourism Day: the statutes of the UN World Tourism Organization were adopted on 27 September 1970; observed since 1980.

October
1 October — International Day of Older Persons.
5 October — World Teachers' Day (UNESCO).
9 October — World Post Day: the Universal Postal Union was founded at Bern, Switzerland, on 9 October 1874.
10 October — World Mental Health Day.
11 October — International Day of the Girl Child (UN).
16 October — World Food Day: the Food and Agriculture Organization (FAO) was founded on 16 October 1945.
24 October — United Nations Day: the UN Charter came into force on 24 October 1945.

November–December
14 November — World Diabetes Day: birth anniversary of Frederick Banting, co-discoverer of insulin.
19 November — World Toilet Day.
1 December — World AIDS Day (first observed in 1988).
3 December — International Day of Persons with Disabilities.
7 December — International Civil Aviation Day: the Chicago Convention was signed on 7 December 1944.
10 December — Human Rights Day: the UN adopted the Universal Declaration of Human Rights on 10 December 1948.
11 December — International Mountain Day.

Mnemonic — "Water 22, Weather 23, TB 24": three back-to-back March days — World Water Day (22), World Meteorological Day (23), World TB Day (24).

Mnemonic — "Food, Post, UN — founders' days of October": World Post Day (9 October, UPU 1874), World Food Day (16 October, FAO 1945), UN Day (24 October, 1945) — all three are birthdays of organisations.

🧠 Active Recall: Which organisation's founding gives us World Health Day, and which gives World Food Day? (WHO, 7 April 1948; FAO, 16 October 1945.)

7. Look-alike pairs — the examiner's favourite

Hindi Diwas — 14 September (India, 1949 decision) | World Hindi Day — 10 January (first World Hindi Conference, Nagpur, 10 January 1975; observed since 2006).
Teachers' Day — 5 September (India, Radhakrishnan) | World Teachers' Day — 5 October (UNESCO).
National Girl Child Day — 24 January (India) | International Day of the Girl Child — 11 October (UN).
National Youth Day — 12 January (India, Vivekananda) | International Youth Day — 12 August (UN).
National Milk Day — 26 November (India, Kurien) | World Milk Day — 1 June (FAO).
National Consumer Day — 24 December (India) | World Consumer Rights Day — 15 March.
Martyrs' Day — 30 January (Gandhi) | Shaheed Diwas — 23 March (Bhagat Singh, Rajguru, Sukhdev).
Vijay Diwas — 16 December (1971 war) | Kargil Vijay Diwas — 26 July (1999).
Constitution Day — 26 November (adopted, 1949) | Republic Day — 26 January (in force, 1950).

Trick: "The same number, a different month" — 5 Sep / 5 Oct (teachers), 12 Jan / 12 Aug (youth). Read the word "World/International" in the question before you pick the month.

8. State formation days (a few that are asked)

1 April — Utkal Divas: Odisha became a separate province in 1936.
22 March — Bihar Diwas: Bihar was separated from the Bengal Presidency in 1912.
30 March — Rajasthan Diwas (1949).
1 May — Maharashtra and Gujarat (1960).
2 June — Telangana (2014).
1 November — several states mark their formation, including Madhya Pradesh, Karnataka (Karnataka Rajyotsava), Kerala (Kerala Piravi) and Haryana (1966).
15 November — Jharkhand (2000), on Birsa Munda's birth anniversary.

🧠 Active Recall: Which two states share 1 May as their foundation day? (Maharashtra and Gujarat, 1960.)

Summary Table

⏰ Review this after 2 days.

⚠️ Caution: Examiner's Trap

Trap 1 — "Similar Name": "World Hindi Day is celebrated on 14 September." Wrong — 14 September is Hindi Diwas (India). World Hindi Day is 10 January. The same trap works with Teachers' Day (5 September) and World Teachers' Day (5 October).

Trap 2 — "Chronological Confusion": "The Constitution of India was adopted on 26 January 1950." Wrong — it was adopted on 26 November 1949 and came into force on 26 January 1950. Watch the verbs: adopted ≠ came into force.

Trap 3 — "Almost Correct Statement": "National Science Day is celebrated on C. V. Raman's birthday." Almost right but wrong — 28 February marks the discovery of the Raman Effect (1928), not his birthday.

Trap 4 — "Negative Phrasing": "Which of the following is NOT a birth anniversary?" Mark each option P (person) or E (event) before answering; the odd one out is your answer.

🔁 In Hindi we say this, in English we say that

गणतंत्र दिवस — Republic Day
संविधान दिवस — Constitution Day
शहीद दिवस — Martyrs' Day
राष्ट्रीय एकता दिवस — National Unity Day
सुशासन दिवस — Good Governance Day
किसान दिवस — National Farmers' Day
बाल दिवस — Children's Day
जयंती — birth anniversary
पुण्यतिथि — death anniversary
स्थापना दिवस — foundation day
विश्व पर्यावरण दिवस — World Environment Day
अंतरराष्ट्रीय योग दिवस — International Day of Yoga

🔗 Static-Dynamic Link

The list of days keeps growing. Recent additions you should know, with their year: Parakram Diwas (23 January, declared 2021), Partition Horrors Remembrance Day (14 August, declared 2021), Janjatiya Gaurav Divas (15 November, declared 2021), Veer Baal Diwas (26 December, announced 2022) and National Space Day (23 August, first observed 2024).

Every year the UN and the ministries announce a new theme for many of these days. Themes change every year, so learn them from the current-affairs section for that year — not from this static chapter.

📅 Revision Planner: Three-Level Blurting

🔢 High-Yield Facts at a Glance

Now you have a calendar in your head — not a list of numbers, but a set of stories. When a date comes up in the exam, ask: whose birthday, or what happened? The story will bring back the date.