Maharashtra Navnirman Sena (MNS) chief Raj Thackeray on Thursday unveiled his party's new flag which is saffron in colour, setting tongues wagging in political circles about a possible ideological shift. Thackeray unveiled the new flag, which in the centre bears a 'rajmudra' (royal seal used during the times of warrior King Shivaji), at the party's plenary meeting in suburban Goregaon.