Senior Bharatiya Janata Party leader Mukhtar Abbas Naqvi has urged Union Home minister P Chidambaram to take notice of the alleged differences emerging between the Mumbai police Special Investigating Team and the National Investigating Agency, and ensure better coordination the two to probe the Mumbai bomb blasts.

Naqvi told rediff.com that he had taken note of some of the news items appearing on various television channels which claimed that the NIA team, was forced to withdraw from the investigations because it found that the SIT was holding back information.

"The home minister should order a probe into the matter and take immediate action to ensure that the NIA returns to Mumbai to continue the investigations.

"The NIA has not issued any statement on the matter yet, but senior officers said that the team would report the matter to the home ministry about the developments," a source in the ministry said.

The SIT on the other hand alleged that the NIA did not have the kind of expertise required for investigations.