Section 83

If after conducting such inquiry as it thinks fit, the local authority is satisfied that any building or anything affixed thereon is in a ruinous state, likely to fall or is in any way dangerous to any person therein or foot passengers on the streets adjoining such building, the local authority shall serve notice on the owner of such building requiring him to either repair the defects or demolish the building or anything affixed thereon within such period of time as the local authority may specify and the local authority may also require such owner to put up such hoardings or fences of such specifications and within such period of time as it may specify.