Standards of Weights and Measures (Enforcement) Act, 1985
21. Manufacture of weights or measures.-
Save as otherwise provided in the Standards Act, no person shall--
a. make or manufacture any weight or measure unless such weight or measure conforms to the standards established by or under the Standards Act;
b. make or manufacture any weight or measure with indications thereon of any weights or measures in accordance with any unit other than the units of weight or measure specified by or under the Standards Act.