Sajid Mansuri among those picked up in the Ahmedabad bomb blasts case is turning out to be a vital lead for the Rajasthan Police.

Sajid is believed to have stayed in Kota from 2002 to 2004 with Dr Iswaq Qoreshi in whose house he rented a room under the alibi of Salim.

He held many secret meetings for SIMI activists in and around Kota in which Abu Bashir is also said to have participated.

Sajid was also present in Jaipur on May 13 the day of the blasts and the Rajasthan government is hopeful there will now be a breakthrough.

"Everybody has to work in tandem, some leads have come which were not available to us earlier," Rajasthan CM Vasundhara Raje said.

Sajid's accomplices, his Kota landlord Dr Qoreshi's son Taufiq and his friend Abrar - a medical student in whose room Sajid stayed on the day of the Jaipur blasts are also being questioned by the Rajasthan Police.

But circumstantial evidence directly linking them to the blasts is yet to emerge.

Sajid has told investigators that he never carried a mobile and his movements during the blasts are so far based on his confessions and those of his companions.

It has not yet been conclusively established that those believed to be behind the Ahmedabad blasts could also be behind the Jaipur blasts but Sajid Mansuri's Kota connections and the fact that he was present on May 13 - the very day of the bomb blasts - could turn out to be a huge lead for the Rajasthan Police which has so far been groping in the dark.