Section 70A(1)(d) in Tamil Nadu Panchayats (Elections) Rules, 1995
(d)the other members of the Panchayat Union Council or the District Panchayat, as the case may be, shall make and subscribe an oath or affirmation in the presence of the senior member, so nominated, of the Panchayat Union Council or the District Panchayat, as the case may be.