1. Professor of Law and Dean, Rajiv Gandhi School of Intellectual Property Law, Indian Institute of Technology, Kharagpur (West Bengal, India); Ministry of Human Resources Development Chair Professor of Intellectual Property Rights, Indian Institute of Technology Kharagpur (West Bengal, India); Emeritus Professor of Law, National Law University, Jodhpur (Rajasthan, India). The author is grateful to the anonymous referees for their constructive comments and suggestions on earlier draft of the paper.