(2)The Registrar or Sub-Registrar of the district or sub-district formed for the purposes of the Registration Act, 1908 (16 of 1908), in which any cantonment is situated, shall, when any document relating to immovable property within the cantonment is registered, send information of the registration forthwith to the Chief Executive Officer and the Defence Estates Officer and such other authority, as the Central Government may prescribe in this behalf.