Section 11(3) in The Standards of Weights and Measures (Packaged Commodities) Rules, 1977
(3)Save as otherwise provided in sub-rule (4), where a commodity in a package is likely to undergo variations in weight or measure on account of environmental conditions and such variation is negligible, the declaration of quantity in relation to such package shall be made after taking into account such variation so that the consumer may receive not less than the net quantity of the commodity as declared on the package, and the declaration of quantity on such package shall not also be qualified by the words "when packed "or the like.
