Also known as E.P.R (emcee/ poet/rapper), Santhanam Srinivasan Iyer is the front-man / emcee of the bands Underground Authority, Spliff and Fosapoy. He's one of the first emcees / rappers from Kolkata to make a mark. He is noted for his stage presence and passionate delivery of vocals. He's also the lyricist of the above mentioned bands and is a follower of Anarchist Communism, which can be seen in his works.