Ranjithkumar, a functionary of Annadhanapatti AIADMK unit and Secretary of MGR Mandram, was injured when his two-wheeler collided with another bike when he was on his way to distribute leaflets on the eve of the birth anniversary of late Chief Minister and AIADMK founder M G Ramachandran, popularly known as MGR, police said.
Alleging that he died due to negligence by the hospital, his family members along with party workers, numbering around 500, staged a roadblock.
They questioned why the 108 ambulance service was not used and why he was taken to a private hospital.
Top police officials rushed to the spot and pacified the crowd, police said.