BJP national general secretary Kailash Vijayvargiya Tuesday sat on a dharna near Esplanade in the city over police not allowing flags and posters on the streets through which BJP president Amit Shah's road show convoy will pass. Shah is scheduled to take out a road show from Shahid Minar in central Kolkata to Swami Vivekananda's house in north Kolkata. Vijayvargia alleged that Kolkata Police is not allowing flags and posters and is even trying to remove a makeshift platform which has been erected to welcome Shah. "We have papers and permission for the road show. Still the police are creating nuisance and are not allowing flags and posters. The police are acting as cadres of TMC," Vijayvargiya said. The police said BJP has permisson only for the road show. But it has elected makeshift platforms at various places.