Answer: Option A
Answer: (a)
Under Article 82 of the Constitution, the Parliament by law enacts a Delimitation Act after every census. After coming into force commencement of the Act, the Central Government constitutes a Delimitation Commission. This Delimitation Commission demarcates the boundaries of the Parliamentary Constituencies as per provisions of the Delimitation Act.
Delimitation commissions have been set up four times in the past - In 1952, 1963, 1973 and 2002 under Delimitation Commission acts of 1952, 1962, 1972 and 2002. The present delimitation of constituencies has been done on the basis of 2001 census figures under the provisions of the Delimitation Act, 2002.