From Potti Sriramulu's fast unto death to the States Reorganisation Act — how India's internal map was redrawn along linguistic lines.
Even before independence, the Indian National Congress had accepted the principle of linguistic provinces in 1920. After independence, the government initially hesitated, fearing that linguistic reorganisation would encourage fissiparous tendencies at a fragile moment for the young republic. Events on the ground, however, forced the issue — and the States Reorganisation Act, 1956 remains the most significant redrawing of India's internal political map.
Based substantially on the Fazl Ali Commission's report, the Act reorganised state boundaries and abolished the earlier Part A, B, C and D state classification, creating 14 states and 6 Union Territories. It came into effect on 1 November 1956. Andhra Pradesh was formed in 1956 by merging Andhra State (1953) with the Telugu-speaking Telangana region of the former Hyderabad State.
The 1956 Act was not the final word; several further reorganisations followed, including Bombay State's split into Maharashtra and Gujarat (1960), Punjab's split into Punjab, Haryana and Himachal Pradesh (1966), the creation of new north-eastern states through the 1970s–80s, and, more recently, the bifurcation of Andhra Pradesh into Andhra Pradesh and Telangana under the Andhra Pradesh Reorganisation Act, 2014 (effective 2 June 2014).
Prelims frequently tests the sequence and composition of the various committees/commissions and the year of formation of specific states. Mains rewards linking linguistic reorganisation to the enduring theme of Indian federalism — how a diverse, multilingual society reconciled regional linguistic identity with national unity without the centrifugal collapse many observers predicted in 1947.