CBI court judge B M Angadi extended the judicial custody of the accused till Dec 14.
Janardhana Reddy and his associate Mehfuz Ali Khan were produced before the court via video conferencing from Chanchalaguda jail in Hyderabad where they are lodged.
The other three were produced through video conferencing from Parappana Agrahara jail.
The bail pleas of all the five accused has been rejected by the CBI court. Reddy subsequently moved the High Court, where his bail plea is pending.
The bail pleas of the then Deputy Conservator of Forests, Bellary district, S Muthaiah and the then Director Mines and Geology S P Raju was rejected by the High Court last month.
Khan's bail plea has already been rejected by the High Court.