The Central Bureau of Investigation (CBI) on Thursday filed a prosecution sanction against former IAS officer RK Mahajan who was a member of the Railway Board during the tenure of Lalu Prasad Yadav.

Conducted in three stages, the Civil Services Examination (CSE) is considered to be one of the toughest competitive exams.

On Monday, after over 10 years of becoming an IAS officer, IAS Rituraj Singh was posted as the collector of Dewas district in Madhya Pradesh.