Thandavarayapuram Ramasamy Paarivendhar, better known as T. R. Paarivendhar (also known as T. R. Pachamuthu, born 24 August 1941) is an Indian politician, academician, founder-president of Indhiya Jananayaga Katchi and Ex MP to the 17th Lok Sabha from Perambalur Lok Sabha constituency, Tamil Nadu. He is well known as the founder-chairman of the SRM Institute of Science and Technology.