Formation Dates of Indian States

Post India’s independence in 1947, there were 562 princely states. Most of the states acceded to India. Many of these princely states were transformed into new states. Later, with the States Reorganization Act of 1956, Indian states were arranged linguistically. Hence, it becomes important to know which states were formed when. The topic, ‘Indian States Formation Dates’ envisages listing down the foundation days of the Indian States and UTs. This article will give further information on the Reorganization of States.

List of Indian States Formation Dates

The list below comprises the formation dates of Indian States. Some states were formed as provinces but achieved statehood at a later date which is also mentioned in the table below:

Indian States	Formation Dates/Years	Formed By	Status Before Foundation
Andhra Pradesh	1 November 1953	States Reorganisation Act, 1956.	Part of Andhra State and Hyderabad State
Arunachal Pradesh	20 February 1987	Created as a Union Territory by the North-Eastern Areas (Reorganisation) Act, 1971. Converted to a state by the State of Arunachal Pradesh Act, 1986	Arunachal Pradesh Union Territory
Assam	1950	Founded by the Bombay Reorganisation Act, of 1960.	Part of Kamarupa Kingdom
Bihar	1950	The Madhya Pradesh Reorganisation Act, of 2000 founded it.	Part of Bengal Province, British India
Chhattisgarh	1 November 2000	Founded as Bihar and Orissa Province, reorganized as Bihar Province in 1936, and achieved statehood in 1950.	Part of Madhya Pradesh
Goa	30 May 1987	Founded by the State of Goa Act, 1986.	Part of Goa, Daman and Diu
Gujarat	1 May 1960	Founded by the Punjab Reorganisation Act, of 1966.	Part of Bombay State
Haryana	1 November 1966	Founded by the Himachal Pradesh (Administration) Order, in 1948 as Himachal Pradesh Province, reorganized as Himachal Pradesh (Part C State) in 1950, Himachal Pradesh Union Territory in 1956, and achieved statehood in 1971.	Part of East Punjab
Himachal Pradesh	1971	Founded by the States Reorganisation Act, of 1956	Part of the princely states of the former Punjab State Agency
Jharkhand	15 November 2000	Founded by the Bihar Reorganisation Act, 2000	Part of Bihar
Karnataka	1 November 1956	Founded by the States Reorganisation Act, 1956 as Mysore State, renamed Karnataka in 1973	Part of Bombay State, Coorg State, Hyderabad State and Mysore State
Kerala	1 November 1956	Founded as Orissa Province in 1936, achieved statehood in 1950, and was renamed Odisha on 1st November 2011.	Part of Madras State and Travancore-Cochin
Madhya Pradesh	1 November 1950	Achieved statehood in 1950	Founded by the Bombay Reorganization Act, of 1960.
Maharashtra	1 May 1960	Founded as Orissa Province in 1936, achieved statehood in 1950, and was renamed Odisha on 1st November, 2011.	Part of Bombay State
Manipur	21 January 1972	Founded by the North-Eastern Areas (Reorganisation) Act, 1971	Manipur Union Territory
Meghalaya	21 January 1972	Founded by the North-Eastern Areas (Reorganisation) Act, 1971	Part of Assam
Mizoram	20 February 1987	Created as a Union Territory by the North-Eastern Areas (Reorganisation) Act, 1971. Converted to a state by the State of Mizoram Act, 1986	Mizoram Union Territory
Nagaland	1 December 1963	Founded by the State of Nagaland Act, 1962	Nagaland Union Territory
Odisha	1950	Part of the princely states of the former Rajputana Agency	Part of Bihar and Orissa Province, British India
Punjab	1947	Founded by the Punjab Reorganisation Act, 1966	Part of East Punjab
Rajasthan	30 March 1949	Rajasthan, earlier known as Rajputana, came into existence	Part of the princely states of former Rajputana Agency
Sikkim	16 May 1975	Founded by the Thirty-sixth Amendment of the Constitution of India in 1975	Kingdom of Sikkim
Tamil Nadu	1 November 1956	Founded by the States Reorganisation Act, 1956 as Madras State, renamed Tamil Nadu in 1969	Part of Madras State and Travancore-Cochin
Telangana	2 June 2014	Founded by the Andhra Pradesh Reorganisation Act, 2014	Part of Andhra Pradesh
Tripura	21 January 1972	Founded by the North-Eastern Areas (Reorganisation) Act, 1971	Tripura Union Territory
Uttar Pradesh	24 January 1950	Created as the United Provinces of Agra and Oudh during British rule in 1937 and Achieved statehood as UP in 1950.	United Provinces
Uttarakhand	9 November 2000	Founded by the Uttar Pradesh Reorganisation Act, 2000 as Uttaranchal, renamed Uttarakhand in 2007.	Part of Uttar Pradesh
West Bengal	1950	Achieved statehood in 1950	Part of Bengal Province, British India

Note – 

1. Goa, Puducherry, Dadra & Nagar Haveli, and Sikkim were not a part of India at the time of independence. 
2. Puducherry along with Karaikal, Mahe, and Yanam, was transferred to India in 1954 by the French.
3. Dadra & Nagar Haveli were liberated in 1954 from the Portuguese. Similarly, Goa was liberated from Portuguese occupation in 1961.
4.  Sikkim became a part of India in 1974.

List of Formation Dates of Indian Union Territories

Indian Union Territories	Formation Dates & Years	Foundation	Status Before Foundation
Andaman and Nicobar Islands	1 November 1956	Founded by the Punjab Reorganisation Act, of 1966.	Andaman and Nicobar Islands (Part D State)
Chandigarh	1 November 1966	Founded by the States Reorganisation Act, of 1956.	Part of East Punjab
Dadra and Nagar Haveli and Daman and Diu	26 January 2020	Founded by the Dadra and Nagar Haveli and Daman and Diu (Merger of Union Territories) Act, 2019.	Dadra and Nagar Haveli and Daman and Diu
Delhi	1 November 1956	Founded by the Jammu and Kashmir Reorganisation Act, of 2019.	Delhi (Part C State)
Jammu and Kashmir	31 October 2019	Founded by the Jammu and Kashmir Reorganisation Act, of 2019.	Part of Jammu and Kashmir State
Ladakh	31 October 2019	Founded by the States Reorganisation Act, of 1956.	Part of Jammu and Kashmir State
Lakshadweep	1 November 1956	Founded by the States Reorganisation Act, 1956.	Part of Madras State
Puducherry	1 November 1954	Achieved union territory status in 1962, renamed Puducherry in 2007.	Pondichéry, French India