New Delhi  - Indian police on Thursday detained the owner of a cybercafe from where emails were sent by an organization calling itself Indian Mujahideen claiming responsibility for the Jaipur serial blasts, news reports said.

The email by the little-known outfit was sent to television channels on Wednesday. The mail claimed responsibility for the blasts that killed at least 63 people on Tuesday in the capital of Rajasthan state and included a video clip of a bicycle with a package strapped to it that the email claimed was a bomb, IANS news agency reported.

The email gave the frame number of the bicycle and claimed it was the same one that was planted at one of the blast sites in Jaipur.

The email was traced to a cybercafe in Ghaziabad on the outskirts of the Indian capital and the owner has been detained for questioning, IANS reported citing police sources.

The email address used was similar to that from which messages were sent to television channels minutes before serial blasts in northern Uttar Pradesh state on November 23. The five blasts in Uttar Pradesh capital Lucknow, Faizabad and Varanasi left 13 dead and more than 40 wounded.

The Jaipur police are also questioning the owner of the shop from where the cycles, believed to have been used to plant the bombs, were purchased.

The police released a sketch on Wednesday of a man suspected of being involved in the bombings. The sketch was prepared after questioning the cycle-shop owner and other witnesses.

"A poster with the sketch has been pasted all over the city asking for information," an official at the police control room in Jaipur said.

He said the situation in the city was peaceful but a dawn to dusk curfew had been clamped in the old city, where the blasts took place, for a second day as a precautionery measure. (dpa)