Besides Ruias, the CBI charged Essar Group director (strategy and Planning) Vikas Saraf, Loop Telecom promoters Kiran Khaitan and her husband I P Khaitan.
A special court on Thursday acquitted all accused in the 2G spectrum allocation scam cases. The scam relates to the granting of 2G spectrum licence allocations in 2007-08 which caused, according to a report by the Comptroller and Auditor General of India, a loss of Rs 1.76 lakh crore. Here is a detailed timeline of how the case came to light and how it has progressed over the years: