N. R. Rengarajan is an Indian politician and incumbent Member of the Legislative Assembly of Tamil Nadu. He was elected to the Tamil Nadu legislative assembly as a Tamil Maanila Congress (Moopanar) candidate from Pattukkottai constituency in 2001 election, and as an Indian National Congress candidate in 2006, 2011 election. He was elected three times: 2001, 2006, 2011.[1][2]