A special court here on Wednesday summoned former prime minister Manmohan Singh, industrialist Kumar Mangalam Birla and former coal secretary P.C. Parakh and others in a coal block allocation case.
Here is the timeline of the case:
October 2013: CBI registers FIR against K.M. Birla, P.C. Parakh and others on charges of criminal conspiracy and corruption in the allocation of coal blocks.
August 28, 2014: CBI files closure report in the case, saying evidence collected during probe did not substantiate the allegations levelled against the people named in the FIR.
October 21: CBI files revised closure report in the case.
December 16: Court rejects closure report, orders further probe and to record statements of the former prime minister who was then holding coal ministry portfolio.
January 2015: Manmohan Singh was questioned by CBI in connection with the case.
January 27: CBI files progress report of investigation.
February 19: CBI files final report in the case.
March 11: Court summons Manmohan Singh, Birla, Parakh, Hindalco company, its officials Shubendu Amitabh and D. Bhatt acharya in the case for April 8.