Section 60(3) in West Bengal Municipal (Building) Rules, 2007
(3)Every room to be used as a kitchen shall have, (a)unless separately provided with any pantry, meant for the washing of kitchen utensils which shall land directly or through a sink to a grated and trapped connection to a waste pipe;(b)an impermeable floor;(c)a window of not less than 1 sq. metre in area opening directly to an interior or exterior open space, or into any shaft;(d)a flue duct, if necessary;(e)a refuse chute for discharge of solid wastes, in case of any building exceeding eighteen metres in height.
