In 2006, a major lawsuit was initiated by the Swiss pharmaceutical company Novartis AG. It targeted Section 3(d) of India's Patents Act. As amended in 2005, states:
(3) The following are not inventions within the meaning of this Act, --
(d) The mere discovery of a new form of a known substance which does not result in the enhancement of the known efficacy of that substance or the mere discovery of any new property or new use for a known substance or of the mere use of a known process, machine or apparatus unless such known process results in a new product or employs at least one new reactant.
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