Sections 3 and 4 of the Indian Patents Act 1970 provide a list of subject matter considered non-patentable in India. For example, for Computer-related inventions, Section 3(k) is the most frequently raised objection during prosecution at the Indian Patent Office (IPO). Section 3(k) particularly proscribes the patentability of mathematical methods, business methods, computer programs per se, and algorithms.
by Rohin Pujari