"Mr Sail and 17 others involved in Belekeri illegal ore scam, have been chargesheeted," a CBI official told PTI here.
The accused have been charged with criminal conspiracy, cheating, forgery and trespass, under Prevention of Corruption Act, the official said.
CBI had earlier arrested four MLAs - Anand Singh (BJP), B Nagendra and Satish Sail, both independents, and Suresh Babu of BSR Congress headed by former minister B Sriramulu, a close aide of mining baron and former minister Janardhana Reddy, in connection with the scam.
CBI has been investigating the case on the order of the Supreme Court which had set up the Central Empowered Committee (CEC) to study the issue.