The mobile app, which was launched on February 4, has been installed by more than a lakh users in just eight days.
Explaining how the BJP is hurting the religious sentiment, Mamata Banerjee said rath means Lord Jagannath’s chariot.
In a recent meeting in New Delhi, Shah instructed the party workers to carry out the Parivartan Yatra even if the state government denies permission.
Union Home Minister Amit Shah and BJP chief JP Nadda are expected to flag off five yatras this month in the poll- bound West Bengal.
The application seeking permission was accepted by the Nabanna, the state secretariat, but the nod is yet to be given.