• March 2012 CAG’s draft report accuses govt of ‘inefficient’ allocation of coal blocks in 2004-2009; estimates windfall gains to allottees at Rs 10.7 lakh crore.
  • May 29, 2012 Prime Minister Manmohan Singh offers to give up his public life if found guilty in the scam. Two days later, CVC directs a CBI enquiry
  • November 25, 2014 CBI informs a special court that it was not permitted to question former Prime Minister Manmohan Singh. The investigating agency also said it wasn't necessary.
  • December 17, 2014 Special court ordered the CBI to examine former Prime Minister Manmohan Singh.
  • January 20, 2015 CBI records the statement of former Prime Minister Manmohan Singh.
  • March 11, 2015 Special court summons former Prime Minister Manmohan Singh, Kumar Mangalam Birla and P.C. Parakh as accused.
  • March 25, 2015 Manmohan Singh moves Supreme Court against summon in coal scam case.