Section 27A(2) in The Calcutta Municipal Corporation Act, 1980
(2)[ The Vigilance Authority shall be a person who is or has been a member of any All-India Service.] [Sub-section (2) of Section 27A substituted by W.B. Act 26 of 1997.]Explanation I.- "Member of an All-India Service" shall mean any person appointed to an All-India Service.Explanation II.- "All-India Service" shall have the same meaning as in section 2 of the All India Services Act, 1951.