Union Home Minister Amit Shah will visit poll-bound West Bengal today to flag-off the fourth phase of 'Parivartan Rath Yatra' from Cooch Behar.arlier, Poribortan Yatra had been flagged from Nabadwip (Nadia), Tarapith (Birbhum) and Jhargram.After flagging off the ‘Parivartan Yatra’, the Union Home Minister will offer prayers at the famous Shri Shri Harichand Thakur temple in Thakur Nagar of North 24 Parganas district.Watch the video.