πΊ 1956 β Today
How Indiaβs states were formed
From the States Reorganisation Act of 1956 to the new Union Territories of 2019 β slide through every change, and click any state for its family tree. Every step links to its source.
Indiaβs outline follows the Government of Indiaβs official depiction; the areas of Jammu and Kashmir and Ladakh are shown as defined by the Government of India in 2019. Earlier maps are built by joining todayβs states, so a boundary is drawn only where it still exists today.
Every change, year by year
- π NCERT Class 12, Politics in India since Independence, Ch. 1 β
- β Bombay Reorganisation Act, 1960 (Ministry of Home Affairs) β
- β South Goa district β History β
- π NCERT Class 12, Politics in India since Independence, Ch. 1 β
- π NCERT Class 12, Politics in India since Independence, Ch. 1 β
- β Government of Himachal Pradesh β Post Independence Period β
- β North-Eastern Areas (Reorganisation) Act, 1971 β
- π NCERT Class 12, Politics in India since Independence, Ch. 7 β
- π NCERT Class 12, Politics in India since Independence, Ch. 1 β
- π NCERT Class 12, Politics in India since Independence, Ch. 1 β
- π NCERT Class 12, Politics in India since Independence, Ch. 1 β
- β PIB β Maps of the new UTs of Jammu & Kashmir and Ladakh (2 Nov 2019) β
Family tree of every state and Union Territory
Andhra Pradesh State 2014
- 1956 Andhra gains the Telugu-speaking areas of Hyderabad State and is renamed Andhra Pradesh. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
- 2014 Telangana is separated; the rest continues as Andhra Pradesh. β Andhra Pradesh Reorganisation Act, 2014 β
Arunachal Pradesh State 1987
- 1956 The North-East Frontier Agency, part of Assam. β North-Eastern Areas (Reorganisation) Act, 1971 β
- 1972 Becomes the Union Territory of Arunachal Pradesh. β North-Eastern Areas (Reorganisation) Act, 1971 β
- 1987 Becomes a state. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Assam State 1972
- 1956 Assam, then including the North-East Frontier Agency and the Mizo District. β North-Eastern Areas (Reorganisation) Act, 1971 β
- 1963 Nagaland is formed from its Naga HillsβTuensang Area. β State of Nagaland Act, 1962 β
- 1972 Meghalaya, Mizoram and Arunachal Pradesh are carved out. β North-Eastern Areas (Reorganisation) Act, 1971 β
Bihar State 2000
- 1956 Bihar. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
- 2000 Jharkhand is carved out. β Bihar Reorganisation Act, 2000 (DoPT) β
Chhattisgarh State 2000
- 1956 Part of Madhya Pradesh. β Madhya Pradesh Reorganisation Act, 2000 (Govt of Chhattisgarh) β
- 2000 Becomes a new state. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Goa State 1987
- 1961 Liberated; part of the Union Territory of Goa, Daman and Diu. β South Goa district β History β
- 1987 Becomes a state on 30 May 1987. β South Goa district β History β
Gujarat State 1960
- 1956 Part of the new, bilingual Bombay State. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
- 1960 Becomes a state. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Haryana State 1966
- 1956 Part of Punjab. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
- 1966 Becomes a state. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Himachal Pradesh State 1971
- 1948 A Chief Commissioner's province, 15 April 1948. β Government of Himachal Pradesh β Post Independence Period β
- 1956 Becomes a Union Territory. β Government of Himachal Pradesh β Post Independence Period β
- 1966 Kangra and most other hill areas of Punjab are merged into it. β Government of Himachal Pradesh β Post Independence Period β
- 1971 Becomes the 18th state on 25 January 1971. β Government of Himachal Pradesh β Post Independence Period β
Jharkhand State 2000
- 1956 Part of Bihar. β Bihar Reorganisation Act, 2000 (DoPT) β
- 2000 Becomes a new state. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Karnataka State 1956
- 1956 A new Mysore State is formed (today's Karnataka). β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
Kerala State 1956
- 1956 Kerala State is formed. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
Madhya Pradesh State 2000
- 1956 A new Madhya Pradesh is formed. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
- 2000 Chhattisgarh is carved out. β Madhya Pradesh Reorganisation Act, 2000 (Govt of Chhattisgarh) β
Maharashtra State 1960
- 1956 Part of the new, bilingual Bombay State. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
- 1960 Gujarat is separated; the rest of Bombay State is named Maharashtra. β Bombay Reorganisation Act, 1960 (Ministry of Home Affairs) β
Manipur State 1972
- 1956 A Part C state, becoming a Union Territory. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
- 1972 Becomes a state. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Meghalaya State 1972
- 1956 Part of Assam. β North-Eastern Areas (Reorganisation) Act, 1971 β
- 1972 Carved out of Assam as a state. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Mizoram State 1987
- 1956 The Mizo District of Assam. β North-Eastern Areas (Reorganisation) Act, 1971 β
- 1972 Becomes a Union Territory. β North-Eastern Areas (Reorganisation) Act, 1971 β
- 1987 Becomes a state. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Nagaland State 1963
- 1956 Part of Assam. β State of Nagaland Act, 1962 β
- 1963 Becomes a state. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Odisha State 1956
- 1956 Orissa (today's Odisha) is one of the 14 states. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
Punjab State 1966
- 1956 A new, larger Punjab is formed. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
- 1966 Haryana and the hill areas given to Himachal Pradesh are separated. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Rajasthan State 1956
- 1956 A new Rajasthan is formed. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
Sikkim State 1975
- 1975 Becomes the 22nd state of India. π NCERT Class 12, Politics in India since Independence, Ch. 7 β
Tamil Nadu State 1956
- 1956 Madras State (today's Tamil Nadu) gains territory from Travancore-Cochin. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
Telangana State 2014
- 1956 Part of Andhra Pradesh. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
- 2014 Becomes a new state on 2 June 2014. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Tripura State 1972
- 1956 A Part C state, becoming a Union Territory. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
- 1972 Becomes a state. π NCERT Class 12, Politics in India since Independence, Ch. 1 β
Uttar Pradesh State 2000
- 1956 Uttar Pradesh. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
- 2000 Uttarakhand is carved out of its north. β Government of Uttarakhand β At a Glance β
Uttarakhand State 2000
- 1956 Part of Uttar Pradesh. β Government of Uttarakhand β At a Glance β
- 2000 Becomes the 27th state on 9 November 2000. β Government of Uttarakhand β At a Glance β
West Bengal State 1956
- 1956 West Bengal is one of the 14 states. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
Andaman and Nicobar Islands Union Territory
No change to record since 1956.
Chandigarh Union Territory 1966
- 1956 Part of Punjab. β Chandigarh district β History β
- 1966 Declared a Union Territory; capital of both Punjab and Haryana. β Chandigarh district β History β
Dadra and Nagar Haveli and Daman and Diu Union Territory 2019
- 1954 Dadra and Nagar Haveli freed from Portuguese rule on 2 August 1954; part of India from 11 August 1961. β UT Administration of Dadra & Nagar Haveli and Daman & Diu β
- 1961 Daman and Diu liberated; part of the Union Territory of Goa, Daman and Diu. β South Goa district β History β
- 1987 Daman and Diu become a separate Union Territory. β South Goa district β History β
- 2019 Parliament passes the merger of the two Union Territories (3 December 2019). β PIB β Merger of Dadra & Nagar Haveli and Daman & Diu passed (3 Dec 2019) β
Delhi Union Territory 1956
- 1956 A Part C state, becoming a Union Territory. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
Jammu and Kashmir Union Territory 2019
- 1956 The state of Jammu and Kashmir. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
- 2019 Reorganised into the Union Territories of Jammu and Kashmir and Ladakh on 31 October 2019. β PIB β Maps of the new UTs of Jammu & Kashmir and Ladakh (2 Nov 2019) β
Ladakh Union Territory 2019
- 1956 Part of the state of Jammu and Kashmir. β PIB β Maps of the new UTs of Jammu & Kashmir and Ladakh (2 Nov 2019) β
- 2019 Becomes a Union Territory (Kargil and Leh districts) on 31 October 2019. β PIB β Maps of the new UTs of Jammu & Kashmir and Ladakh (2 Nov 2019) β
Lakshadweep Union Territory 1956
- 1956 The Laccadive, Minicoy and Amindivi Islands are made a separate unit. β States Reorganisation Act, 1956 (Ministry of Home Affairs) β
Puducherry Union Territory 1954
- 1954 The French possessions are transferred to India on 1 November 1954 and become a Union Territory. β Government of Puducherry β History β
How this is made: todayβs states come from public-domain Natural Earth boundaries fitted to Indiaβs official outline. Each earlier map joins todayβs states; the one boundary that cannot be rebuilt this way β between Punjab and Himachal Pradesh before 1966 β is not drawn. Years and events are from NCERT, the Acts of Parliament and official government pages.