E. M. Sudarsana Natchiappan is a politician from Indian National Congress party and a Member of Parliament representing Tamil Nadu in the Rajya Sabha. He was also elected to the Lok Sabha from Sivaganga constituency as an Indian National Congress candidate in 1999 election. He is Advocate in Supreme Court of India. Sudarsana Natchiappan has addressed the United Nations General Assembly on two occasions, both in October 2008. He was part of the Indian delegation, and gave statements on UN peacekeeping operations and globalisation and independence.