The Mumbai Police have arrested four workers of the Uddhav Thackeray-led Shiv Sena (UBT) in connection with an assault on a civic engineer, an official told news agency PTI.

Accused Santosh Kadam, Sada Parab, Uday Dalwi and Haji Aleem Khan were on Tuesday produced before a local court which remanded them in judicial custody, the official from Vakola police station told PTI.