Seven near-simultaneous bomb blasts tore through crowded markets in the Indian tourist city of Jaipur on Tuesday, killing at least 80 people and wounding 200 in what police said was a terror attack.

"We have information that 80 people have died," Rajasthan state home minister Gulab Chand Kataria told reporters.

"One suspect was detained and is being investigated," he added in Jaipur, the state capital.

One of the explosions went off near a packed Hindu temple, leaving pools of blood outside in the street and cycles and rickshaws in a mangled heap, television pictures showed.

Among the 80 dead were a 10-year-old boy at the Hanuman (monkey god) temple, a bride in a bright red saree still wearing marriage bangles and a young man covered in blood who was left hanging over the twisted wreckage of a bicycle rickshaw, the Press Trust of India said.

Shopping bags, bloodied sandals and shoes were strewn around Johri bazaar, one of the hit markets, which security forces cleared quickly for fear of further blasts.

One live bomb was found attached to a bicycle at one of the explosion sites and was defused, police said.

'Foreign connections'

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

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.

Press Trust of India, which said 200 had been injured, quoted a statement from Pakistan Prime Minister Yousuf Raza Gilani saying his country, "condemns all acts of terrorism and reaffirms its firm commitment to fight this scourge together with the international community."

Police said seven blasts occurred within minutes of each other during the evening in crowded markets of old walled Jaipur, about 260 kilometres from New Delhi.

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

Prime Minister Manmohan Singh condemned the blasts and appealed for calm, while the United States immediately condemned the wave of bombings.

"We're still collecting some information about this. But given the facts that we know now, quite clearly these bombs were intended to claim innocent life and it's something that we very clearly condemn," US state department spokesperson Sean McCormack said.

State borders sealed

Historic Jaipur, which has a population of more than two million, is one of India's top tourist resorts and a favourite attraction for foreigners.

Jaipur is popularly known as the 'pink city' because of the ochre-pink hue of its hill top forts, Hindu maharajah's palaces and crenellated city walls.

State borders were sealed and a high alert sounded in Rajasthan state and neighbouring areas, police said.

The government also issued a nationwide security alert, particularly in New Delhi, where roadblocks were set up on major roads, and the financial capital Mumbai.

The bombings took place as India marked the 10th anniversary of nuclear tests conducted on 13 May in Rajasthan, but it was unclear if there was any link.

Plagued by bombings

India has been plagued by bombings across the country in recent years and routinely points the finger at foreign-based Islamic militant groups fighting New Delhi's rule in the Himalayan state of Kashmir.

In October last year, an explosion killed six people and wounded 32 in a packed cinema hall in Ludhiana in Punjab state in northern India. Police called it a "terrorist" bombing.

In August, 43 people were killed and 70 injured in the southern city of Hyderabad when attackers triggered blasts at an outdoor auditorium and a popular eatery.

A series of explosions outside courts in three northern cities killed 13 last November.

Analysts say Islamic extremist groups are attempting to stoke sectarian tensions to derail an India-Pakistan peace process and damage the country's booming economy.

AFP