Section 16(3)(a) in New Town Kolkata Planning Area (Building) Rules, 2014
(a)the erection of any building -(i)has been commenced without obtaining sanction or permission from Sanctioning Authority.(ii)is being carried on or has been completed otherwise than in accordance with the sanction accorded, or the permission granted under these rules made under the Act, or after such sanction or permission has been lawfully withdrawn, or(iii)is being carried on, or has been completed in contravention of any provision of the rules, or