Section 115B(2) in The Goa Panchayat Raj Act, 1994
(2)If any member of the Taluka Panchayat is elected as a Member of the Village Panchayat or Zilla Panchayat, he shall exercise option to retain the membership of the Village Panchayat or the Taluka Panchayat or the Zilla Panchayat within 10 days of his election failing which he shall cease to be a member of the Taluka Panchayat.
