Section 78C(4) in The West Bengal Primary Education Act, 1973
(4)The amount of the education cess payable by any owner of a tea estate under sub-section (2A) of section 78 of this Act in respect of any period prior to the coming into force of the West Bengal Taxation Laws (Second Amendment) Act, 1989, shall, notwithstanding anything contained in this Act, be reduced by such amount of education cess payable in respect of such tea estate on such quantity of green tea leaves produced therein during the said period as may be equivalent to the quantity of any tea despatched for which such owner has purported to have enjoyed or would have enjoyed exemption from payment of the education cess during such period, and it is hereby declared that for determining the amount of the education cess to be reduced, each kilogram of tea despatched during such period shall be equivalent to four and a half kilograms of green tea leaves produced in such tea estate.