India's Central Bureau of Investigation (CBI) has raided the homes of former finance minister P. Chidambaram and his son, television news channels reported on Tuesday.

A total of 14 locations in Chidambaram's home city of Chennai were searched by the CBI, India's main federal crime-fighting agency, Republic TV reported.

A CBI spokesperson in New Delhi could not confirm the raids. Chidambaram, who served in the Congress government that was voted out of office in 2014, could not be reached immediately for comment.