Around 200 workers pelted stones at a factory during the Bharat bandh, the two-day strike called by the trade unions in Sector 5 breaking windows and damaged vehicles, even as authorities imposed prohibitory orders in the district.
Five persons have been arrested in today's incident, Senior Superintendent of Police Shalabh Mathur said.
Around 100 workers had also assembled in Sector 10 industrial area and started pelting stones but police reached the spot and prevented damage to factories, he said.
"Barring these two minor incidents, no clash was reported from other places in the city," the SSP said.
District Magistrate M K S Sundaram told reporters Section 144 has been clamped in the district till February 28.
Six PAC battalions have been deployed and one RAF unit in addition to local police and police force from Ghaziabad and Hapur were deployed, Sundaram said.
In yesterday's violence, 150 cases have been registered at Noida Phase 2 police station by industrialists against trade union leaders and rioters, Mathur said.
"At Sector 58 police station, 34 FIRs have been registered. Around 86 persons were arrested yesterday. Around 30 more were arrested today," the SSP said.
Sundaram said inquiry was being conducted by additional commissioner into yesterday's violence.
Noida Entrepreneur Association president Vipin Malhan has anticipated loss of Rs 600 crore in yesterday's violence as it included loss of production and damage to property.