No person shall make or recover any trade allowance other than an allowance prescribed by rules or byelaws made under this Act in any market area in any transaction in respect of the notified agricultural produce concerned and no Civil Court shall, in any suit or proceeding arising out of any such transaction, have regard to or recognise any trade allowance not so prescribed.
Explanation Every deduction, other than a deduction on account of deviation from sample when the purchase is made by sample or on account of deviation from standard, when the purchase is made by reference to a known standard or on account of difference between the actual weights of the container and the standard weight or on account of the admixture of foreign matter shall be regarded as a trade allowance for the purposes of this section.