A massive controversy has broken out in Tamil Nadu after a rendition of a Sanskrit invocation song was played at an event in Indian Institute of Technology-Madras. Sanskrit song was sung instead of Tamil Nadu’s state song Tamil Thaai Vazhthu at the foundation stone laying ceremony of National Technology Centre for Ports, Waterways and Coasts. Union Ministers Nitin Gadkari and Pon Radhakrishnan were present at the event.. MDMK is now up in arms, saying it is a usual practice to sing the Tamil Anthem at the begining of every state function... MDMK Leader Vaiko has demanded an apology from Gadkari & Radhakrishnan.. IIT-Madras Director Bhaskar Ramamoorthy has clarified that the students had selected the song and not the varsity administration.