"No incident has been reported since yesterday. Curfew is in effect and is being enforced strictly," Additional Director General of Police (Law and Order) Mukul Goel told PTI.
He said steps were being taken to normalise the situation at the earliest. "It has been directed that action should be taken against whosoever is found guilty," he said.
Twenty people have been arrested in connection with clashes between two communities yesterday.
Five policemen, a city magistrate, and 13 others were injured. A constable was stated to be in serious condition in Chandigarh PGI after suffering a bullet injury.
Uttar Pradesh Chief Minister Akhilesh Yadav has already sought a report on the incident.