Police seek suspect over fatal India blast

Police are hunting for a suspect who illegally stored explosives in a restaurant building in central India that sparked a deadly blast, killing 88 people and injuring nearly 100.

The blast occurred in the town of Petlawad in Madhya Pradesh state's Jhabua district on Saturday morning when many office workers and schoolchildren were having breakfast in the restaurant and scores of labourers waited at a crowded bus stand near the building.

"The official death toll is 88, but the actual number may be higher, nearly 100. That will be confirmed soon," senior Jhabua district police official Seema Alava said, adding about 100 others were injured and rescue operations had been wrapped up.

She said police earlier thought the explosion was triggered by a gas cylinder, which detonated explosives that were stored illegally in the restaurant building and amplified its impact, destroying neighbouring buildings and vehicles.

"It was the other way around. The explosives in the building exploded first... extreme heat sparked a urea nitrate chemical reaction and then that was it. Everything went off after that," Alava said.

She said a suspect, Rajendra Kasawa, who has been on the run with his brothers since Saturday, had illegally stored urea, gelatine sticks, detonators and other explosives used for digging wells, construction and mining in a warehouse in the building.

Although Kasawa had a licence for the material, Alava said he stored them "in an unauthorised way in a residential area" and therefore, been booked for culpable homicide and unlawful possession of explosives.

Madhya Pradesh Chief Minister Shivraj Singh Chouhan visited Petlawad, 950 kilometres south of New Delhi, on Sunday.

Locals surrounded him and demanded better security, saying their earlier complaints against Kasawa had gone unheard by district officials, resulting in one of the deadliest blasts to hit India in recent years.

Many complained that mine operators like Kasawa are negligent in storing detonators and other explosive materials, yet authorities rarely act against them.

Workers collected firewood and lit pyres that billowed black smoke into the sky as mass cremations of dozens of people were carried out late on Saturday.

Jhabua district is home to several manganese and bauxite mines where many mine workers are hired on contract from Petlawad and its neighbouring towns.