Section 27(1)(a) in The Gujarat Ownership Flats Act, 1973
(a)Description of the land as provided in Section 26 of this Act or the post-office address of the property, including in either case the liber, page and date of executing the Declaration, the date and serial number of its registration number under the Registration Act, 1908 and the date and other reference, if any, of its filing with the competent authority.