A look at the political map of India over the last seven decades would give an appearance of it being in a constant state of flux. It isn't only that the state boundaries have been redrawn over and over again but India's international borders have also extended by a bit (Goa, Sikkim, Puducherry). The political map of India is being redrawn again with the bifurcation of the state of Jammu & Kashmir into two Union Territories - Jammu & Kashmir and Ladakh.
From hundreds of princely states and 17 provinces before partition, to 14 states and 6 Union Territories following the Reorganisation of States in 1956 to 29 states and 7 union territories, before the bifurcation of Jammu & Kashmir to 28 states and 9 union territories after it. We trace the evolution of the political map of India.
After territorial consolidation of the princely states and political integration of India.
1953: Andhra carved out of the state of Madras.
1954: Inclusion of Pondicherry (now Puducherry), Mahe, Yanam, Karaikal and Chandernagar in the Indian union.
1956: Reorganisation of Indian states.
1960: Bombay split into Maharashtra and Gujarat.
1961: Liberation of Goa. Goa, Dadra & Nagar Haveli, Daman & Diu become part of India.
1963: Nagaland granted statehood.
1966: Reorganisation of Punjab. Parts of the state merged with Himachal Pradesh. Birth of Haryana.
1972: States Meghalaya, Mizoram and Union Territory Arunachal Pradesh carved out of Assam.
1975: Sikkim become part of the Indian Union.
2000: Formation of Uttaranchal (now Uttarakhand), Chhattisgarh and Jharkhand.
2014: Andhra Pradesh split to form the new state of Telangana.
2019: Bifurcation of the state of Jammu & Kashmir into two Union Territories - Jammu & Kashmir and Ladakh.