any of the products supplied by the Corporation. M) If the dealer shall either by himself or by his servants or agents commit or suffer to be committed any act, in the opinion of the Chief Regional Manager of the Corporation on the time being at Calcutta whose decision shall be final, is prejudicial to the interest or good name of the Corporation or its products the Chief Regional Manager shall not be bound to give reason for such decision.” II. The Motor Spirit and High Speed Diesel (Regulation of Supply, Distributor and Prevention of Malpractices) Order, 2005 “2. Definitions - in this order, unless the context otherwise requires: (a) "adulteration" means " [presence of marker in motor spirit and high speed diesel and/or] the introduction of any foreign substance into motor spirit or high speed diesel illegally or 10unauthorisedly with the result that the product does not conform to the requirements of the Bureau of Indian Standards specifications number IS 2796 and IS 1460 for motor