Section 272(2) in Karnataka Municipal Corporations Act, 1976
(2)If the Commissioner refuses to grant permission to erect or add to any building on the ground that the proposed site falls wholly or in part within a street alignment prescribed under section 271 and if such site or portion thereof which falls within such alignment be not acquired on behalf of the corporation within one year after the date of such refusal, the corporation shall pay reasonable compensation to the owner of the site.