List of all major state-observed days, cultural festivals, and historical commemorations
January – March
Date / Period | Name of the Day / Festival | Category | Key Significance |
14–15 January | Magh Bihu / Bhogali Bihu & Tusu Puja | Harvest Festival | Marks the end of harvesting season; observed with community feasts (Uruka) and lighting of Meji. Also observed as Tusu Puja by tea tribes. |
17 January | Silpi Diwas | Cultural Memorial | Death anniversary of Rupkonwar Jyoti Prasad Agarwala, pioneer of Assamese culture and cinema. |
23 January | Netaji Subhas Chandra Bose Jayanti | Commemoration | National/State holiday marking the birth anniversary of Netaji. |
27 January | Gwthar Bathou San | Tribal Religious Festival | Principal religious day of the Bodo community honoring Lord Bathou. |
28 January | Patharughat Diwas | Historical Memorial | Pays tribute to the peasant martyrs of the 1894 Patharughat agrarian revolt against British tax increases. |
31 January | Me-Dam-Me-Phi | Ancestor Worship Festival | Traditional ancestor-worship festival celebrated by the Tai-Ahom community. |
1 February | Bir Chilarai Divas | Historical Commemoration | Honors the birth anniversary of the legendary 16th-century Koch general, Bir Chilarai. |
Mid-February | Ali-Aye-Ligang | Tribal Spring Festival | Seed-sowing festival of the Mising community; marked by the Gumrag dance. |
Mid-February | Karbi-Dehal-Kachir Dom | Tribal Cultural Event | Traditional ritual festival celebrated by the Karbi community. |
April – June
Date / Period | Name of the Day / Festival | Category | Key Significance |
14–16 April | Bohag Bihu / Rongali Bihu | State New Year & Festival | Assamese New Year marking the arrival of spring; featured by Bihu dance and music. |
18 April | Tithi of Damodar Deva | Vaishnavite Observance | Commemorates the death anniversary of the prominent 16th-century Ekasarana saint. |
21 April | Sati Sadhani Divas | Historical Commemoration | Honors the courage and ultimate sacrifice of Sati Sadhani, the last queen of the Chutia kingdom. |
1 June | Janmotsav of Sri Sri Madhabdeva | Vaishnavite Observance | Birth anniversary of Sri Sri Madhabdeva, the chief disciple of Srimanta Sankardeva. |
Mid-June | Ambubachi Mela | Religious Fair | Annual Tantric fertility festival held at the Kamakhya Temple in Guwahati. |
20 June | Rabha Diwas | Cultural Memorial | Death anniversary of Kalaguru Bishnu Prasad Rabha, artist, musician, and revolutionary. |
July – September
Date / Period | Name of the Day / Festival | Category | Key Significance |
28 July | Desh Bhakti Diwas | Freedom Movement Memorial | Death anniversary of freedom fighter Deshbhakta Tarun Ram Phukan. |
5 August | Karmachari Diwas | Administrative Day | Commemorates Lokapriya Gopinath Bordoloi (first Chief Minister of Assam) and honors government employees. |
1 September | Tirobhab Tithi of Sri Sri Madhabdeva | Vaishnavite Observance | Death anniversary of saint-reformer Sri Sri Madhabdeva. |
3 September | Abhiruchi Sports Day | State Sports Day | Honors Bhogeswar Baruah, the first Arjuna Awardee from Northeast India (born 3 Sept). |
12 September | Tirobhab Tithi of Srimanta Sankardeva | State Religious Observance | Death anniversary of Srimanta Sankardeva, founder of the Neo-Vaishnavite movement. |
21 September | Janmotsav of Srimanta Sankardeva | State Religious Observance | Birth anniversary of Mahapurusha Srimanta Sankardeva. |
22 September | Karam Puja | Tea Tribe Harvest Festival | Major agricultural festival of the Tea Tribes and Adivasi communities of Assam. |
October – December
Date / Period | Name of the Day / Festival | Category | Key Significance |
Mid-October | Kati Bihu / Kongali Bihu | Agricultural Observance | Solemn Bihu marked by lighting saki (earthen lamps) in paddy fields to protect crops. |
18–21 October | Durga Puja & Vijaya Dashami | Religious Festival | Widespread state festival featuring grand public pandals and rituals. |
8 November | Kali Puja & Diwali | Festival of Lights | Observed with traditional lamp lighting and worship of Goddess Kali. |
24 November | Lachit Divas | Military History Day | Honors Ahom general Lachit Borphukan and his historic victory at the Battle of Saraighat (1671). |
2 December | Asom Divas (Su-Ka-Pha Divas) | Statehood / History Day | Commemorates Chaolung Sukapha, the founder of the Ahom Kingdom in 1228 AD. |
10 December | Swahid Diwas | Martyrdom Memorial | Honors the martyrs of the six-year Assam Movement (1979–1 |