Kokrajhar: Assam Chief Minister Himanta Biswa Sarma on Tuesday filed a defamation case seeking Rs 500 crore in damages against Congress State President Gaurav Gogoi, AICC General Secretary Jitendra Singh and former Chhattisgarh Chief Minister Bhupesh Baghel for allegedly making “false” and “malicious” allegations against him. The Chief Minister said that Congress leaders such as.