BIRRD to be equipped with additional operation theatres Updated: Updated: February 10, 2021 15:41 IST The free surgeries and out of cost medical facilities extended by TTD is attracting thousands of patients particularly those from northern States thus resulting in protracted waiting time for surgeries running into few months. Share Article AAA The free surgeries and out of cost medical facilities extended by TTD is attracting thousands of patients particularly those from northern States thus resulting in protracted waiting time for surgeries running into few months. The Tirumala Tirupati Devasthanam (TTD) has resolved to construct additional operation theatres at its Balaji Institute of Surgery, Research and Rehabilitation for Disabled (BIRRD) hospital at Tirupati to reduce the waiting time for surgeries.