Three-tier system of Panchayati Raj consists of - (1) Grain Panchayat, Panchayat Samiti, Block Samiti (2) Grain Panchayat, Block Samiti, Zila Parishad (3) Gram Panchayat, Panchayat Samiti, Zila Parishad (4) Gram Panchayat, Zila Parishad, Block Samiti