Delhi Chief Minister Arvind Kejriwal today refused to comment on a new controversy he has scripted by retweeting a music director's apparent observation about the BJP's Narendra Modi and the Congress' Rahul Gandhi. br br Last night, Mr Kejriwal had retweeted music director Vishal Dadlani, who said on Twitter, "Stuck between a moron and a murderer....what now, India!?" br br Mr Dadlani's tweet came soon after an interview of Congress vice-president Rahul Gandhi was aired by a private TV channel, and was part of a stream of reviews on Twitter.