Section 396(4) in Kolkata Municipal Corporation Act, 1980
(4)The Municipal Commissioner shall communicate the sanction or the provisional sanction to the person who has given the notice under section 393 or section 394; and where he refuses sanction or provisional sanction either on any of the grounds specified in sub-section (2) or under section 405 or section 406; he shall record a brief statement of his reasons for such refusal and shall communicate the refusal along with the reasons therefor to the person who has given the notice.