Padma Shri Dr T.K. Viswanathan is a legal luminary who has held various positions in the academia, Government of India and in Lok Sabha. During his four decades of his career he has served as a lawyer, as a Professor of Jurisprudence and as Secretary to Government of India in the Ministry of Law & Justice and as Secretary General of Lok Sabha. He has drafted many important landmark legislations over the past two decades and the Government has immensely benefitted from his expertise in legislative drafting and in parliamentary and constitutional matters.

As Law Secretary he led the Indian delegation to UNCITRAL between 2006-2010. Dr Viswanathan in his capacity as Secretary General was also a member of the Parliamentary delegations accompanying the Speaker to Inter Parliamentary Union meetings and has visited Parliaments across the world. He was also consultant to the former President of India, Shri Pranab Mukherjee and at present the Director in the Pranab Mukerjee Foundation. Dr Viswanathan was awarded the State award of Padma Shri in 2017 by the President of India.