Sibal did not respond to messages seeking his reaction.
RIL spokesperson declined to comment.
A PE has also been started in connection with alleged working of touts and middlemen and kickbacks in the aviation sector in against Radia, Ramesh Nambiar, a former Air India official, Deepak Talwar and unknown officials of Ministry of Civil Aviation.
Another PE has also been intiated against Radia into alleged market manipulation and hammering of stocks of Unitech.
