In this Act, unless the context otherwise requires,-

(a) "census authority " means the Registrar General and ex officio Census Commissioner for India;

(b) "Commission " means the Election Commission appointed by the President under article 324 of the Constitution;

(c) "Delimitation Act " means the Delimitation Act, 1972 (76 of 1972);

(d) "last census " means the census held in India in 1971;

(e) "Scheduled Castes Order " means the Constitution (Scheduled Castes) Order, 1950, made by the President under article 341 of the Constitution;

(f) "Scheduled Tribes Orders " means the Constitution (Scheduled Tribes) Order, 1950 and the Constitution (Andaman and Nicobar Islands) Scheduled Tribes Order, 1959, made by the President under article 342 of the Constitution;

(g) "State " means a State included in the Scheduled Castes Order and the Scheduled Tribes Orders, and includes the Union territory of the Andaman and Nicobar Islands.