BJP president JP Nadda is set to launch the party's "Rath Yatra" in West Bengal today to mobilise public support ahead of the assembly elections but confusion prevails over grant of permission for the march during which party leaders intend to crisscross the state. Nadda is scheduled to kick off the "Parivartan Yatra" from Nabadwip, the birthplace of 15th century saint Chaitanya Mahaprabhu in Nadia district. Union Home Minister Amit Shah is also likely to inaugurate two of the five proposed yatras later this month. Meanwhile, JP Nadda have lunch with the farmers in Malda.