The first FIR was filed against former Rural Development Minister, Enos Ekka and former Urban Development Minister, Harinarain Rai.
The second FIR was filed against Koda, former Water Resources Minister, Kamlesh Singh, former HRD Minister, Bandhu Tirkey and former Health Minister, B P Sahi.
Koda and others were alleged in the illegal investment and hawala transactions corruption cases.
The Enforcement Directorate and the Income Tax department are also separately investigating against the accused.
ED had filed an FIR against Koda and some others on Oct 9, 2009.
The Income Tax officials conducted raids in the premises of Koda and his aides on Oct 31, 2009.