Section 68(e) in Kolkata Municipal Corporation Building Rules, 2009
(e)A canopy or canopies and or a porch/porches each not exceeding 15 sq. in. in area or one percent (1 %) of the ground floor area whichever is higher, having a clear width of not less than 2.5 m. may be allowed at a minimum clear height of 2.5 m. from the ground level provided that requisite space for the movement. of fire tenders is left all round the building unobstructed by such canopies/porches;
