Agartala, Oct 3 (IANS) Life returned to normal in this capital city of Tripura less than 48 hours after serial blasts left about 100 injured, and the state government announced a cash reward for anyone providing clues about those responsible for the blasts.”The state government has announced a reward of Rs.100,000 to anyone providing vital information about the bombings,” Tripura police Deputy Inspector General Nepal Das said Friday.

Officials from the Intelligence Bureau (IB), National Security Guards (NSG), and Central Forensic Laboratory, Kolkata, with the Tripura police criminal investigation department (CID) personnel have continued their probe to ascertain the terror groups behind the blasts.

Two days after four explosions rocked the city, shops and businesses were back to normal and shoppers were thronging the markets ahead of the five-day Durga Puja beginning Sunday.

“The BSF (Border Security Force) has been put on alert and is keeping a close watch on the Tripura’s border with Bangladesh,” Das said.

Tripura shares an 856-km long international border with Bangladesh.

Director General of Police Pranay Sahay said: “Government agencies were trying to ascertain if the Agartala blasts have anything in common with the explosions in Ahmedabad, New Delhi and Bangalore.”

“Ammonium nitrate, fuel oil, a mobile set, and 9-volt batteries were used in the explosions,” he added.

Quoting hospital sources, the DGP said that of the 100 wounded, 54 were still in hospital and the condition of four remained critical. One of the injured was shifted to Guwahati for advanced treatment.

The politburo of the Communist Party of India-Marxist (CPI-M) has urged the central government to extend all help in tracking down the culprits.

“We have organised demonstration and rallies across Tripura to protest against Wednesday’s bombings,” said CPI-M state secretary Bijon Dhar.