(1) The Central Government may, by notification in the Official Gazette, declare this section to apply to such goods or class of goods and in such areas as may be specified in the notification, and thereupon, subject to the provisions contained in section 18, every forward contract for the sale or purchase of any goods specified in the notification which is entered into in the area specified therein otherwise than between members of a recognised association or through or with any such member shall be illegal.
     (2) Any forward contract in goods entered into in pursuance of sub-section (1) which is in contravention of any of the bye-laws specified in this behalf under clause (a) of sub-section (3) of section 11 shall be void--
         (i) as respects the rights of any member of the recognised association who has entered into such contract in contravention of any, such bye-law, and also
         (ii) as respects the rights of any other person who has knowingly participated in the transaction entailing such contravention.
     (3) Nothing in sub-section (2) shall affect the right of any person other than a member of the recognised association to enforce any such contract or to recover any sum under or in respect of such contract:
     Provided that such person had no knowledge that such transaction was in contravention of any of the bye-laws specified under clause (a) of sub-section (3) of section 11.
     ¹[(3A) Any forward contract in goods entered into in pursuance of sub-section (1) which at the date of the contract is in contravention of any of the bye-laws specified in this behalf under clause (aa) of sub-section (3) of section 11 shall be illegal.]
     (4) No member of a recognised association shall, in respect of any goods specified in the notification under sub-section (1), enter into any contract on his own account with any person other than a member of the recognised association, unless he has secured the consent or authority of such person and discloses in the note, memorandum or agreement of sale or purchase that he has bought or sold the goods, as the case may be, on his own account:
     Provided that where the member has secured the consent or authority of such person otherwise than in writing he shall secure a written confirmation by such person of such consent or authority within three days from the date of such contract :
     Provided further that in respect of any outstanding contract entered into by a member with a person other than a member of the recognised association, no consent or authority of such person shall be necessary for closing out in accordance with the bye-laws the outstanding contract, if the member discloses in the note, memorandum or agreement of sale or purchase in respect of such closing out that he has bought or sold the goods, as the case may be, on his own account