The Central Bureau of Investigation (CBI) has filed the first charge sheet against jailed former Jharkhand chief minister Madhu Koda and his two associates in a graft case, a source in the federal agency said Saturday.

The charge sheet against Koda, Vinod Sinha and Sanjay Chaudhary was filed in a Ranchi vacation CBI court Friday. Both Koda and Sinha are in jail. Chaudhary is absconding.