How many Delimitation Commissions have been constituted by the Government of India till December 2023?

Four Delimitation Commissions have been constituted in India so far — in 1952 (under the Delimitation Commission Act, 1952), 1963 (under the Act of 1962), 1973 (under the Act of 1972) and 2002 (under the Delimitation Act, 2002). Therefore the total number of Delimitation Commissions constituted till December 2023 is four.