Section 37T(2) in The Narcotic Drugs and Psychotropic Substances (Madhya Pradesh) Rules, 1985
(2)Poppy straw stored with P.S. II/P.S. II A/P.S. Ill licensee may gain in weight during rainy/winter season owing to absorption of moisture. As such, deviation margin upto one per cent is permitted on the stock of poppy straw held in balance by the licensee during rainy/winter season.