The orders would be in force till midnight today except the city police commissionerate limits, police said.
People belonging two communities clashed at Kalladka last evening after the stabbing of Hindu Jagarana Vedike district president Ratnakar Shetty and another in the locality.
The two had been hospitalised.
Following this, people belonging to the two communities indulged in stone throwing at each other. The groups also damaged vehicles and shops were forced to shut down.
Dakshina Kannada District Superintendent of Police Bhushan G Borase and other police officials reached Kalladka and brought the situation under control, police said.