Constitution of India, 1949
234.Reservation of seats and special representation to cease after forty years.-
Notwithstanding anything in the foregoing provisions of this Part, the provisions of Constitution relating to -
(a) the reservation of seats for the Scheduled Castes and the Scheduled Tribes in the House of the People and in the Legislative Assemblies of the States; and
(b) the representation of the Anglo-Indian community in the House of the People and in the Legislative Assemblies of the States by nomination, shall cease to have effect on the expiration of a period of [forty years] from the commencement of this Constitution:
Provided that nothing in this article shall affect any representation in the House of the People or in the legislative Assembly of a State until the dissolution of the then existing House or Assembly, as the case may be.