Union Home Minister Amit Shah on Friday spoke to West Bengal Governor C V Ananda Bose over the violence during a Ram Navami procession in Howrah and took stock of the situation, sources said.

During the telephonic conversation, the home minister sought to know the prevailing situation in the state, particularly in the violence-hit areas of Howrah.

The governor is believed to have provided the home minister details about Thursday's violence and the present situation, sources said.

Fresh incidents of stone-throwing by unidentified people on police personnel, deployed in Howrah's Kazipara area which witnessed violence over the Ram Navami procession on Thursday, triggered tension in the area on Friday afternoon, an officer said.

The police had to use batons to disperse a group of people who had gathered there. Prohibitory orders under Section 144 of CrPC were imposed in Kazipara area, the senior IPS officer told PTI.

Clashes broke out between two groups in the Kazipara area of Howrah district during Ram Navami festivities. Several vehicles were torched and shops ransacked in the area, police said.

The situation in and around the area was peaceful on Friday with a large number of police personnel deployed there.

Thirty-one people have been arrested in connection with Thursday's violence, Chief Minister Mamata Banerjee said.

Claiming that there was laxity in a section of the administration, she said strict action would be taken against those involved in the clash.

Bengal Chief Minister Mamata Banerjee, who assured of strict action against the culprits, accused the BJP for allegedly trying to stoke communal tension during the procession.

The BJP, meanwhile, has sought an NIA probe and deployment of central forces in the affected areas through a petition in the Calcutta High Court.