The move by the agency comes a day after a special CBI court in Hyderabad had issued summons to the YSR Congress president directing him to appear before it on May 28 in a disproportionate assets case.
The CBI had also named the representatives of Jagati publications and other business firms associated to Reddy in its chargesheet filed in the court yesterday.
The court had also summoned 12 others facing charges in the case to appear before it on the same day.
Managing Directors Srinivasa Reddy (Hetero Drugs), Nityananda Reddy (Aurobindo Pharma), Sarat Chandra Reddy (Trident Life Sciences), senior IAS officer B P Acharya, AP Industrial Infrastructure Corporation's former officer Y Vijayalakshmi, former Company Secretary of Aurobindo Pharma Chandramouli are among those issued summons by the CBI court.
IAS officer Venkatarami Reddy, Ramky Group chairman Ayodhyarami Reddy, Jagati Publications (publisher of Sakshi Telugu daily) and Ramky Pharma India Limited have been named as the other accused in the case.
CBI said Ramky had invested Rs 10 crore in Jagati Publications as a quid pro quo for the benefits it secured from the then government headed by Jagan's father Y S Rajasekhara Reddy.
Besides, representatives of Jagati Publications, Hetero, Aurobindo, Trident Life Sciences, who have been named in the CBI charge sheet, have also been asked to appear in the court on May 28.