 After IARI, Dr S Nagarajan was tasked with establishing the Intellectual Property regime for plant varieties in India, under the albeit of Protection of Plant Varieties and Farmers’ Rights Authority (PPV & FRA), Government of India, New Delhi; where he served as Chairperson from 2005.Dr Nagarajan helped create and make operational in India, protection of plant varieties guided by Article 27(3)(b) of the World Trade Organisation’s Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPs).He retired from active service in 2010 and chiefly contributed as an advisor for M. S. Swaminathan Research Foundation (MSSRF) till his death in 2016.