Section 16B(4) in The West Bengal Panchayat Act, 1973
(4)The Gram Panchayat Shall, at least seven days before the date of holding the meeting referred to in sub-section (2), give public notice of such meetings by beat of drums as widely as possible, announcing the agenda, place, date and hour of the meeting. A notice of such meeting shall also be hung up in the office of the Gram Panchayat. Similar publicity shall also be given in the case of an adjourned meeting.