The BJP- TMC (Trinamool Congress) face off over the saffron party's demand for Bengal National Register of Citizens ( NRC) likely to be more intense ahead of the next general election as the ruling political party in West Bengal observed ' Dhikkar Divas' on the day when BJP President Amit Shah is holding a mega rally in Kolkata on Saturday.

Soon after his arrival in Kolkata , the BJP chief was greeted with 'Black Flag' by TMC activists. The rally has been organised by BJP Yuva Morcha at Mayo Road in Kolkata.

On Thursday last, as preparation of putting up the stage and the barricades began, TMC cadres brought in flex on motor vans and put those up at light posts, trees and also atop bamboo barricade put up for the event.

Amit Shah, who has been involved in a heated war of words with TMC chief Mamata Banerjee ever since the final draft of Assam NRC was released, is expected to rake up the matter in his speech this afternoon.

The war between the two parties escalated last evening when posters asking the "BJP to leave Bengal" were put up in and around Shah's rally venue, following which the BJP leadership wrote to Union Home Minister Rajnath Singh to demand 'security' for people attending the political gathering.

On Saturday morning, a bus with supporters of saffron party was allegedly attacked at Chandrakona Road in West Midnapore while they were en route Kolkata.