A war of words broke out on Friday between Congress vice president Rahul Gandhi and union HRD Minister Smriti Irani on Twitter over IIT-Madras's censure of a students' group for criticising the Narendra Modi government. Within minutes of Rahul Gandhi condemning the move to censure the IIT students' group on the micro-blogging site Twitter, Human Resource Development (HRD) minister Irani threw an open challenge to him. "Next time fight ur battles ur self don't hide behind NSUI. N by d way I'm returning to Amethi soon. See you there," Irani tweeted.