The Central Bureau of Investigation (CBI) has reportedly examined and questioned former Prime Minister Manmohan Singh on his role in the coal block allocation case relating to Hindalco.
The CBI is yet to give an official confirmation in this regard, even as Dr Singh's office has denied receiving any such summons.
According to one media report, CBI officials "examined" Dr. Singh at his home two days ago.
The case pertained to the allocation of a Talabira II block to Hindalco when Dr Singh was holding the coal portfolio.
The CBI has to file a status report in connection with the case before a special court by January 27.
Further details are awaited.