"On the basis of my conversation with a third man who was not a player in the episode, CBI summoned me for interrogation.
"I ask the investigating agency why it does not question the main players and beneficiaries of the horsetrading drama," he said.
Several of them have also been named in the sting CD, he said."Why aren't they summoned by the CBI," Rawat told reporters here on his return from New Delhi after making his second appearance before the CBI in connection with the case.