India, July 28 -- Supporters of the Raj Thackeray-led Maharashtra Navnirman Sena (MNS) allegedly assaulted the head of an academic coaching centre in Mumbai's Kalyan suburb.

In a purported video of the incident, three men are seen sitting across the desk from the owner of the centre Siddharth Singh Chandel.

Chandel runs the Siddhartha Logic coaching centre, which prepares students for competitive examinations, including for the Indian Administrative Service, NDTV reported.

The video shows Chandel on the phone, trying to placate the men. The attackers had alleged that Chandel was charging exorbitant fees for coaching but had not taken classes.

One of the MNS supporters in white shirt is seen slapping Chandel, following which the attack...