The Patent Act 1970 and the Patent Rules 1972 came into force on April 20, 1972, which replaced the Indian Patent and Design Act 1911. The Patents Act was mainly drafted on the advice of the Ayyangar Committee Report, which was headed by Justice N. Rajagopala Ayyangar. One of the suggestions made in this report is to grant only process patents with regards to inventions like food, drugs, medicines, and chemicals.
When it became a signatory to many international understandings, India strengthened its patent law and came in union with the modern world. A noteworthy step towards reaching this objective was becoming a member of the Trade Related Intellectual Property Right system (TRIPS). A signatory of the Paris Convention and the Patent Cooperation Treaty on December 7, 1998, India was obliged to amend its Patent Act and obey the provisions. On January 1, 1995, India was required to provide patent protection till the nation started granting product patent.