The charge of Tiwari has been handed over to Anurag Garg who was looking after Training.
CBI has termed it a routine exercise.
Prabodh Kumar, who has been handling major corruption cases including Tatra truck scam, AgustaWestland case among others, has been transferred to Banking Services and Fraud Section while R P Agrawal has been given charge of anti-corruption wing of the agency.
R S Bhatti, who is in charge of policy, media relations and CBI's snooping wing Special Unit, has been given additional charge of Technical and Forensic unit.
Amerendra Kumar Singh, heading Patna Zone, has been given charge of Kolkata Zone as well after Suman Bala Sahoo was repatriated to parent cadre.