Delimitation Commission's 1963 Formula Set Tamil Nadu Assembly Seats at 234

Tamil Nadu's Assembly seat count of 234 was established in 1963 by the Delimitation Commission using a unique mathematical formula specific to the state, then known as Madras. This approach deviated from the standard method applied elsewhere in India. The Commission based its decision on constitutional provisions requiring Assembly seats to be an integral multiple of Lok Sabha seats, considering demographic changes from the 1961 Census and the state's allocation of 41 parliamentary seats at the time.