The Constitution (73rd Amendment) Act, 1992, gave constitutional status to Panchayati Raj Institutions. All the listed features are basic provisions introduced by this amendment: 1. Provides for a three-tier structure: This is mandatory for states with a population above 20 lakhs (village, intermediate, and district levels). 2. Reservation of seats: This amendment mandates reservation of seats for Scheduled Castes, Scheduled Tribes, and women (not less than one-third of the total seats) at all three levels. 3. Election under the supervision of the State Election Commissions: The amendment provides for the constitution of an independent State Election Commission in each state to conduct elections to the Panchayats. 4. Introduction of the 11th Schedule: This schedule was added to list the 29 functional items placed within the purview of Panchayats.