Section 123(b) in Police Regulations, Bengal , 1943
(b)Each Superintendent within the Range shall forward to the Deputy Inspector-General, not less than two months before the date of the conference, a list of subjects to be discussed and the names of any Superintendents of other Ranges with whom he desires to discuss any subjects. The Deputy Inspector-General shall circulate a complete list of the agenda to the Deputy Inspector-General, Criminal Investigation Department, and to all officers who will attend, at least one week before the conference.