Acquisition of open land and land occupied by platforms etc., within regular line of street

If any land, whether open or enclosed, not vested in the municipality and not occupied by any building, is within the regular line of a public street or if any platform, verandah, step, compound wall, hedge or fence or some other structure, authorized or not, external to a building abutting on a public street, or a portion of such platform, verandah, step, compound wall, hedge, fence or other structure is within the regular line of such street, the Municipal Commissioner or the Executive Officer may, with the prior approval of the municipality and after giving the owner of such land or building not less than seven clear days notice of his intention so to do, take possession, on behalf of the municipality, of such land with its enclosing wall, hedge or fence, if any, or of such platform, verandah, step, compound wall, hedge, fence or other structure or of any portion thereof within the regular line of the public street, and, if necessary, clear the same, and the land so acquired shall thereupon be deemed to be a part of the public street and shall be vested in the municipality: Provided that where the land or the building is vested in the State Government or the Central Government or any agency thereof, the Municipal Commissioner or the Executive Officer shall not take possession thereof without the previous sanction of the State Government or the Central Government, as the case may be.