JOIN USAug 2007: DoT initiates allotment of 2G Spectrum and Unified Access Services licences
Jan 10, 2008: DoT decides to issue licences on first-come-first-serve basis
May 4, 2009: Complaint filed with CVC claiming illegalities in the 2G spectrum allocations
May 19, 2009: Another complaint filed to the CVC, highlighting grant of spectrum to Swan Telecom at throwaway prices
2009: CVC refers the case to CBI
Oct 21, 2009: CBI files FIR against "unknown officers" of the DoT and "unknown private persons/companies and others"
Nov 14-15, 2010: Raja resigns as Telecom Minister
Feb 2, 2011: CBI arrests Raja
April 2, 2011: CBI files its first chargesheet, names Raja and others as accused in the case
April 25, 2011: CBI files supplementary charge sheet, names five more people including Kanimozhi as accused
Feb 2, 2012: SC cancels 122 licences granted during Raja's tenure.
April 19, 2017: Special CBI Court concludes arguments
Dec 21, 2017: Raja and all other accused in the case let off.