A day after a blast killed six people in a multiplex in Ludhiana, Punjab Chief Minister Parkash Singh Badal has ruled out revival of terrorism in the state.

After visiting the injured at various hospitals in Ludhiana on Monday, he strongly condemned the act of anti-national forces to disturb the peace and harmony in the state.

Asked whether the blast was revival of terrorism in the state, he replied in the negative saying, 'people would not allow the hard-earned peace to go.'

"People of Punjab have no sympathy with terrorists as they have gone through worst days... there is no chances of revival of terrorism," he said.

Badal also announced an ex-gratia grant of Rs two lakh each for the next of kin of those killed in the blast.

Talking to media persons after the visiting the blast site, he said Punjab Police was probing the incident and that it would be able to give details only after investigations.

Badal said it was still premature to say anything about the nature of explosives or the group behind the blast.

Meanwhile, top police officers reviewed the situation with their counterparts in various districts and directed them to take precautionary measures to prevent re-occurrence of such events.

"Police have been put on high alert especially in thickly populated areas, including railway stations, bus stands and marriage palaces," DIG Ishwar Chander said.

A senior Punjab Police official said that investigations are being carried out on various angles.

"Forensic experts were examining the chemicals used in the blast," he said, adding at present the nature of chemicals used cannot be disclosed.

The district administrations had been directed not to allow anyone to hold public meetings or gatherings without prior permission, officials said in Ludhiana.