Assam Chief Minister Himanta Biswa Sarma has said that he will file a defamation case against Congress leader Rahul Gandhi after PM Narendra Modi's visit to Guwahati on April 14. Sarma's decision came after Gandhi tweeted linking him to the Adani group. Gandhi cited the names of Ghulam Nabi Azad, Jyotiraditya Scindia, Himanta Biswa Sarma, Kiran Kumar Reddy and Anil K Antony in his tweet.