Mamata Banerjee began a day-long dharna at Esplanade in Kolkata to protest alleged post-poll violence against TMC workers and leaders.
Banerjee said police denied permission for a stage and microphones, forcing her to address supporters with a megaphone.
The protest also targets the alleged attack on Abhishek Banerjee and the eviction of hawkers, with the dharna scheduled to continue till evening.