The document outlines the legal provisions in India regarding non-patentable inventions, as specified in Sections 3 and 4 of the Patent Act of 1970, highlighting specific categories such as frivolous inventions, discoveries, and certain agricultural and medicinal methods that cannot be patented. It emphasizes the importance of novelty, utility, and non-obviousness, while also referencing landmark Supreme Court cases that clarify these principles. The document concludes with examples of non-patentable inventions and the implications of various court rulings.