75-year-old Rao, who expired on May 30, was charge sheeted by the CBI along with Congress leader and industrialist Naveen Jindal, ex-Jharkhand Chief Minister Madhu Koda and 17 others in the case pertaining to allocation of Amarkonda Murgadangal coal block.
A memo, along with the death certificate of Rao, was filed before Special CBI Judge Bharat Parashar stating that the accused had expired, which was confirmed by the prosecution advocate, V K Sharma, as well.
All the accused have denied the allegations levelled against them and said there was no evidence to show that there was any conspiracy during the coal block allocation process.
Rao, a veteran Telugu filmmaker who had directed movies with legendary actors like N T Rama Rao and Akkineni Nageswara Rao, passed away at a private hospital on May 30 after prolonged illness.
He was a member of Congress party and served as a minister in the UPA-I Government.