INDIAN police were interrogating a dozen men yesterday detained after eight near-simultaneous bombings killed about 80 people in crowded markets in the tourist city of Jaipur.

"We have detained around one dozen people and we are trying our best to unravel the conspiracy behind this dastardly attack," Rajasthan state home minister Gulab Chand Kataria said.

Among those detained in the city, which was under a dawn-to-dusk curfew yesterday, were one of the 200 wounded and a rickshaw puller, a police official added, asking not to be named.

A federal team of explosives experts meanwhile arrived from New Delhi to help with inquiries into Tuesday night's blasts.

Eight bombs went off within minutes of each other in crowded markets close to several Hindu temples in what police said was a terror attack on the city which lies 160 miles west of the Indian capital.

One unexploded bomb was found attached to a bicycle at one of the explosion sites. It was defused and handed over to the explosives experts, police said.

Schools and government offices shut down yesterday in a day of mourning across the western desert state of Rajasthan of which Jaipur is capital.

The bombs were planted on bicycles and rickshaws or in cars.

"It's a terror attack. There was no (intelligence) report of this," said police director general A.S. Gill.

No claims of responsibility were reported.

Government officials are usually quick to blame Islamic militants based in Pakistan for such attacks, which have plagued India in recent years.

India's junior home minister Shriprakash Jaiswal told reporters "the people responsible for these attacks have foreign connections," but he refused to point a finger directly at traditional foe Pakistan.

In Jaipur hospital wards and at the morgue, the dead included Hindus and Muslims, a strong minority in the city.

(SD-Agencies)