Kolkata: The CBI on Tuesday arrested a former general manager of Eastern Coalfields Limited (ECL) and two of his associates in an illegal coal mining case, an official said.

He told that he was arrested after hours of interrogation at the CBI office here.

"They will be produced in court on Wednesday. They are directly involved in the scam," he claimed.

Last week, the CBI had arrested another former general manager of ECL along with three others in the case.