Officials said protests took place at 17 places across the state, including Ballia, Aligarh, Gautam Buddh Nagar and Varanasi.
He said 52 people have been arrested from "both sides", and after reviewing CCTV footage about their involvement in the incidents like stone-pelting and torching of vehicles and properties, cases will be registered against them.
The Supreme Court turned down pleas by Rajasthan and Madhya Pradesh governments and refused to modify an earlier order that cleared the decks for the nationwide release of the Sanjay Leela Bhansali flick on January 25.
According to the police, the organisers had sought permission for the Hanuman Jayanti procession in the Jahangirpuri area and the route has been regularised.
Around 20-25 youths of upper caste Thakur community from Shabbirpur village were on their way to Simlana village under Badgaon police station to take part in a function to garland the statue of Rajput warrior-king Maharana Pratap.
The man, identified as Pramod Jaising Hore, had posted a message on his Facebook page and shared a message on WhatsApp on Sunday, saying he would be ending his life in support of the reservation demand, said Mukundwadi police station's Senior Inspector Natha Jadhav.
Police personnel entered the university campus to only control the situation, police said.
Electric scooters suddenly catching fire has become a cause for concern of late.
As many as 21 people, including 12 policemen and six civilians, were injured in the clashes in Seelampur which continued for one-and-half hours, while five persons have been detained, according to police.
Lawyers alleged that two of their colleagues were injured, including one in police firing, but the police denied that it had opened fire.
Two men, who were apparently part of a demonstration by Jamia Millia Islamia students on Sunday, have been admitted to the Safdarjung Hospital with "gunshot injury", sources said on Monday.
Police resorted to baton charges and fired tear gas shells to disperse the protesters.
The angry protesters also clashed with police and pelted stones at security personnel.
Violence erupted on the campus around last midnight, following a clash between two student groups leading to the death of Mahtab, DIG (AligarhRange) Govind Agarwal, who led the police operation, said.
Alleging that a teacher had sexually assaulted a minor girl, angry protesters converged outside a school in Bengaluru to demand that he be handed over to them and indulged in violence when police tried to whisk him away.
Army was called in on Wednesday to help control widespread violence sparked by quota agitation by Patel community in Gujarat which has claimed seven lives even as curfew was clamped in several areas.
Defying prohibitory orders, protests were held in Delhi, Bengaluru, Hyderabad and several other cities. Protesters, mostly students and activists, were detained on a large scale in national capital and other places.
Incidents of arson, firing and vandalism were reported from Madhya Pradesh, Rajasthan, Uttar Pradesh, Bihar and Punjab as protesters agitated against the dilution of the SC/ST Act.