Section 371(1) in The Calcutta Municipal Corporation Act, 1980
(1)No person shall, except with the permission of the Municipal Commissioner granted in this behalf, erect or set up any wall, fence, rail, post, step, booth or other structure, whether fixed or movable or whether of a permanent or temporary nature, or any fixture in or upon any street or upon or over any open channel, drain, well or tank in any street so as to form an obstruction to, or an encroachment upon, or a projection over, or to occupy, any portion of such street, channel, drain, well or tank.
