A three-member team of ED officials, led by Assistant Director Sujit Sadak, came to Burdwan town to find out if those involved in the October 2 blast had any link with Bangladesh-based fundamentalist organisations.
The ED officials went to the Burdwan police station and collected information and documents. They also spoke to the sub-inspectors of the police station who were probing the case, the police said.
They also went to the office of Superintendent of Police SMH Mirza and held an hour-long meeting with him.
The blast accused were suspected to have been radicalised in Jehadi ideology.
Six people, including two women, were arrested in connection with the explosion in West Bengal while six more people were arrested in Assam.
