Section 268(1) in West Bengal Municipal Corporation Act, 2006
(1)Where the Commissioner, upon any information in its possession, is satisfied that any building is unfit for human habitation and is not capable, at a reasonable expense, of being rendered fit, it shall serve upon the owner of the building and upon any other person having an interest in the building, whether as lessee, mortgage or otherwise, a notice to show cause within such time as may be specified in the notice as to why an order of demolition of the building should not be made.