Evolution of Panchayati Raj

Constitution (73rd Amendment) Act, 1992 makes provisions for a 3-tier system of Panchayati Raj for all the States having population of above__:

In which five year plan, the Panchayati Raj System was introduced in India for the first time?

Balwantrai Mehta, a pioneer of Panchayati Raj and a distinguished freedom fighter, was Chief minister of which state?

The Three tier system ofpanchayati raj was adopted by which state for the first time?

A three tier Panchayat is envisaged for states having population above __________?