(1) No person subject to this Act shall, without the previous sanction in writing of the Central Government or of the prescribed authority,–
Explanation.—–If any question arises as to whether any society, institution, association or organisation is of a purely social, recreational or religious nature under clause (b) of this sub-section, the decision of the Central Government thereon shall be final.
(2) No person subject to this Act shall participate in, or address, any meeting or take part in any demonstration organised by any body of persons for any political purposes or for such other purposes as may be prescribed.