A First Information Report or FIR was filed against Mr Solanki on a complaint made by Himanshu Kumar Singh, a medical student who was injured during the clashes on February 28.
Himanshu was arrested after the incident; he was released on Thursday afternoon after which he filed a complaint with the police, R K Chaturvedi, DIG, Kanpur Range, said.
The case was filed on a day when doctors in Uttar Pradesh, who were on protest demanding action against Mr Solanki, ended their six-day-long strike.
The strike was called off after the Allahabad High Court assured the doctors of time-bound probe into the incident.
On Friday last, Mr Solanki and his supporters allegedly accused doctors at Kanpur's Halet hospital of mistreating a patient. In the violence that erupted, the police used batons. 24 doctors were arrested. Their colleagues point out that no action was taken against the politician and his supporters.