Section 70(3)(F) in The Goa, Daman and Diu School Education Rules, 1986
(F)Execution of Trust Deed. - No portion of building grant shall be paid to the management of a school, unless and until they execute or agree to execute a trust deed or an agreement, as the case may be, in accordance with the requirements of the next following rule. If, however, the building is erected on a site already covered by a trust deed, a receipt may be sufficient.