Section 132(1) in Kolkata Municipal Corporation Building Rules, 2009
(1)Any building with floor area 5,000 sq. m or more should have an electrical power distribution drawing with anticipated load demand. The electricity drawing must be approved by an Electrical Engineer or an Energy Manager or a certified Energy Auditor or a person duly qualified by the appropriate authority and holding a supervisory license. The electrical drawing must be submitted along with the building plan.