Patents Act, 1970
For the purposes of this Act,— (a) any act of making, constructing, [using, selling or importing] a patented invention solely for uses reasonably related to the development and submission of information required under any law for the time being in force, in India, or in a country other than India, that regulates the manufacture, construction, [use, sale or import] of any product; (b) importation of patented products by any person from a person [who is duly authorised under the law to produce and sell or distribute the product], shall not be considered as an infringement of patent rights.]