"At around 9.30 am he complained of diziness. We immediatley rushed him to the Deen Dayal Upadhyay hospital. He was brought back at around 12.30 noon after doctors conducted the necessary examinations," Tihar Prisons Spokesperson Sunil Gupta said.
66-year-old Kalmadi is lodged in jail no 4 of Tihar jail in connection with alleged irregularities in the conduct of the mega sporting event.
Gupta said that jail administration is keeping an eye on his health and providing all medical assistance to the former OC chief.
Kalmadi will be taken to the hospital within the next couple of days for further examination, he said.
Gupta said, "Doctors have advised to conduct blood test and other examinations. It will be conducted in the Prisons hospital."