Section 16(4)(b) in Kolkata Municipal Corporation Building Rules, 2009
(b)the traffic carrying capacity of a street in any ward or part thereof, is of the opinion that the erection of any building or execution of any work in such ward or part thereof will put additional burden on the existing civic services, he may sanction the erection of such building or execution of such work subject to such restrictions or conditions, including uses, as he may deem fit to impose: