MUMBAI -- The Indian police have reportedly made some headway in the probe of the Mumbai serial blasts which took place Wednesday, said official sources Saturday.

One of the biggest clues, the owner of the scooter on which the Improvised Explosive Device (IED) was planted, has been identified. The scooter used to plant bomb in Zaveri bazar has been traced to Bhagchand Das Jain, a resident of Byculla, Mumbai. The police have recorded his statement.

"The police barricaded Khau Galli soon after the blast. We were not allowed to enter the area. The next day the whole market was shut. We went to lodge a complaint about our missing scooter. That 's when the police smelt a rat. We have owned the Activa for 14 months. When the police showed us the scooter, we saw how badly damaged it was," Jain said.

Meanwhile, the sources have said that there could be a Kolkata link to the blasts and that the Maharashtra Anti Terror Squad (ATS) is in touch with the Kolkata Special Task Force (STF). This came after a suspect believed to be associated with the Indian Mujahideen went missing in the last few days.

Sources also said that the ATS has asked for the details of the passenger lists from Kolkata to Mumbai for eight days before the blasts. It has also asked for the reservation charts.

Meanwhile, a National Investigation Agency (NIA) team visited Ahmedabad Saturday to meet Indian Mujahideen suspect Danish who was arrested by the Crime Branch in connection with the Ahemdabad blast in 2008.

The Ahemdabad crime branch and Gujarat ATS is coordinating with Mumbai ATS with regards to information with Indian Mujahideen modules.

The serial blasts that rocked Mumbai Wednesday evening have seemed to have caused cracks in the Congress-Nationalist Congress Party (NCP) coalition ruling in Maharashtra.