State | State day | Date | Significance | Timeline | Ref. |
Andhra Pradesh | Andhra Pradesh Day | 1 November | Reorganisation (1956) | - 1953 – State of Andhra separated from the State of Madras by Andhra State Act, 1953
- 1956 – Merged with State of Hyderabad to form the State of Andhra Pradesh by States Reorganisation Act, 1956
| [1] |
Arunachal Pradesh | Arunachal Pradesh Day | 20 February | Statehood (1987) | - 1972 – Created as a union territory from Assam by North-Eastern Areas (Reorganisation) Act, 1971
- 1987 – Converted to a state by State of Arunachal Pradesh Act, 1986
| [2] |
Assam | Asom Day | 2 December | Establishment of Ahom kingdom (1228) | - 1874 – Divided from Bengal Presidency to form North-East Frontier Province
- 1905 – Merged into Eastern Bengal and Assam
- 1912 – Re-established as Province of Assam
- 1950 – Achieved statehood as State of Assam
| [3] |
Bihar | Bihar Day | 22 March | Formation (1912) | | [4] |
Chhattisgarh | Chhattisgarh Rajyotsava | 1 November | Formation (2000) | | [5] |
Goa | Goa Liberation Day | 19 December | Liberation (1961) | | [6] |
Goa Day | 30 May | Statehood (1987) | [7] |
Gujarat | Gujarat Day | 1 May | Formation (1960) | | [8] |
Haryana | Haryana Day | 1 November | Formation (1966) | | [9] |
Himachal Pradesh | Himachal Pradesh Day | 25 January | Formation (1971) | | [10] |
Jharkhand | Jharkhand Foundation Day | 15 November | Formation (2000) | - 2000 – Divided from Bihar by Bihar Reorganisation Act, 2000
| [11] |
Karnataka | Karnataka Rajyotsava | 1 November | Reorganisation (1956) | - Originally the Kingdom of Mysore in the Indian Empire
- 1948 – Admitted as State of Mysore in the Indian Union
- 1956 – Southern Kannada-speaking parts of Bombay State added to Mysore State per States Reorganisation Act, 1956
- 1973 – Renamed as State of Karnataka
| [12] |
Kerala | Kerala Piravi | 1 November | Formation (1956) | | [13] |
Madhya Pradesh | Madhya Pradesh Foundation Day | 1 November | Formation (1956) | | [14] |
Maharashtra | Maharashtra Day | 1 May | Formation (1960) | - 1960 – Bifurcation of State of Bombay to form State of Maharashtra by Bombay Reorganisation Act, 1960
| [15] |
Manipur | Manipur Statehood Day | 21 January | Statehood (1972) | - 1972 – Achieved statehood by State of Manipur Act, 1971
| [16] |
Meghalaya | Meghalaya Statehood Day | 21 January | Statehood (1972) | - 1970 – Established as an autonomous state in Assam by Assam Reorganisation (Meghalaya) Act, 1969
- 1972 – Achieved statehood by North-Eastern Areas (Reorganisation) Act, 1971
| [17] |
Mizoram | Mizoram Statehood Day | 20 February | Statehood (1987) | - 1971 – Founded as a union territory by North-Eastern Areas (Reorganisation) Act, 1971
- 1987 – Established as Mizoram state by State of Mizoram Act, 1986
| [18] |
Nagaland | Nagaland Statehood Day | 1 December | Formation (1963) | - 1963 – Founded by State of Nagaland Act, 1962
| [19] |
Odisha | Odisha Day | 1 April | Formation (1936) | | [20] |
Punjab | Punjab Day | 1 November | Reorganisation (1966) | | [21] |
Rajasthan | Rajasthan Day | 30 March | Formation (1949) | - 1949 – Founded as United State of Rajasthan from erstwhile Matsya and Rajasthan
- 1950 – Renamed as Rajasthan
- 1956 – Reorganized by States Reorganisation Act, 1956
| [22] |
Sikkim | Sikkim Day | 16 May | Formation (1975) | - Originally the Kingdom of Sikkim in the Indian Empire
- 1975 – Accession and establishment by the 35th amendment to the Constitution of India
| [23] |
Tamil Nadu | Tamil Nadu Day | 18 July | Renaming of Madras to Tamil Nadu (1969) | - 1950 – Province of Madras renamed as State of Madras
- 1952 – Divided by Andhra State Act, 1953
- 1956 – Reorganized by States Reorganisation Act, 1956
- 1969 – Renamed as Tamil Nadu by Madras State (Alteration of name) Act, 1968
| [24] |
Telangana | Telangana Formation Day | 2 June | Formation (2014) | - 2014 – Divided from Andhra Pradesh by Andhra Pradesh Reorganisation Act, 2014
| [25] |
Tripura | Tripura Statehood Day | 21 January | Statehood (1972) | - 1949 – Tripura acceded to the Indian Union by Tripura Merger Agreement
- 1950 – Became a part C state by Constitution of India
- 1956 – Organized as a union territory by States Reorganisation Act, 1956
- 1972 – Achieved statehood by North-Eastern Areas (Reorganisation) Act, 1971
| [26] |
Uttar Pradesh | Uttar Pradesh Day | 24 January | Statehood and renaming United Provinces to Uttar Pradesh (1950) | | [27] |
Uttarakhand | Uttarakhand Day | 9 November | Formation (2000) | | [28] |
West Bengal | West Bengal Day | 15 April[note 1] | Pohela Boishakh | - 1947 – Province of Bengal divided to form Province of West Bengal
- 1950 – Gained statehood as State of West Bengal
| [30] |