" The tenants have challenged the aforesaid Notification granting total exemption to all buildings belonging to the Hindu, Christian and Muslim religious public trusts and public charitable trusts from all the provisions of the Act on three grounds (a) that section 29 of the Act suffers from the vice of excessive delegation of legislative powers in as much as it vests in the State Government unguided and uncontrolled discretion in the matter of granting exemptions and is, therefore, violative of article 14 of the Constitution, (b) that the Notification dated 16th August, 1976 deprives the tenants of all such buildings (buildingsr belonging to Hindu, Christian and Muslim religious public trusts and public charitable trusts) of the equal protection of the beneficial provisions of the Act which is available to the tenants of other buildings and as such the same is discriminatory offending against the equal protection clause of article 14 and (c) that in any event the total exemption from all the provisions of the Act granted to such buildings, where partial exemption would have sufficed, is excessive, unwarranted and unsupportable.