What is the law relating to declarations on prepacked commodity under legal Metrology Act, 2009? Explain.

Section 18 of the Legal Metrology Act, 2009 states that no person shall manufacture, pack, sell, import, distribute, deliver, offer, expose or possess for sale any pre-packaged commodity unless such package is in such standard quantities or number and bears thereon such declarations and particulars in such manner as may be prescribed. Any advertisement mentioning the retail sale price of a pre-packaged commodity shall contain a declaration as to the net quantity or number of the commodity contained in the package in such form and manner as may be prescribed.