Policemen were caught on tape smashing water drums and damaging two-wheelers parked along the street.
The video, accessed by CNN-IBN, shows policemen smashing water drums and pounding two-wheelers parked along the streets.
Police controlled the rioting by using batons, tear gas, plastic bullets and finally opened fire.
The Crime Investigation Department's (CID) Nashik wing will investigate the criminal conspiracy angle.
The owner of the eatery, where the fight began, was arrested on Thursday on charges of inciting violence.
The situation remains tense, although no fresh incidents of violence have not been reported. The state government has ordered a probe.
In the violence, four persons were killed, 19 police officers, 102 policemen and 100 locals were injured.
The violence started at a hotel reportedly after a tiff over non-payment of a hotel bill by a group of four people.
Angered by a delay in response by authorities, a mob even burnt a police vehicle.
Communal clashes that broke out on Sunday in Dhule, Maharashtra.
The communal situation in Dhule is still simmering.