A worker of the Uddhav Thackeray-led faction of the Shiv Sena was attacked by unidentified persons at Kalyan in Thane district on Wednesday morning, police said.
Harshawardhan Palande, deputy chief of the Kalyan city unit of the Sena, was injured in the attack and admitted to hospital, said an official.

The incident took place on Pune Link Road in Kalyan East, said inspector S G Gavali of Kolsewadi police station.