Section 21: Every certificate of validity-

(a) shall state the boundaries, extent and situation of the land in respect of which the certificate is given; and (b) shall briefly specify the nature of the concession; and (c) shall contain a complete statement of any limitations, modifications and conditions imposed by the Court; and (d) shall declare the concession to be valid subject to terms of the certificate of validity; and (e) shall be signed by the Judge making the final order for the issue of the certificate of validity or his successor in office; and (j) may be in the form in Schedule A.