to the needs of operation theatres, ICUs, IMCUs, blood bank and special wards. A digital EPABX system has been installed with battery power backup. The hospital has 52 operation theatres, besides intensive care units and post-operative wards. The hospital requires around 1,400 cubic metres of oxygen a day, which is supplied through 1,052 outlets using cylinders. The hospital consumes around 300 oxygen cylinders every day. The hospital was the first government-run institution in the state to install a tank to store liquid oxygen. The tank, with a capacity to hold 13,000 litres of oxygen, would cater to the needs of the entire hospital when it becomes operational. The tank has been installed in the space between Tower Block 2 and the old cardiology block. The tank, costing 4 million, has been built free of cost by Inox Air Products, which supplies the gas to the hospital. A full tank will ensure that supply will last for 5 days. Dispensaries attached to the hospital include Government Secretariat Dispensary, Government High Court Dispensary, Government Chepauk Offices Dispensary, Government Estate Dispensary, and Government Raj Bhavan Dispensary. As of 2013, there were 231 beds for various ICUs at the hospital including for poly trauma, orthopaedics, medical emergencies, poison, surgical, cardiology, neurology and geriatrics. An additional 15 beds for cancer ICU has been planned along with the commissioning of a linear accelerator for precise radiation therapy. In 2018, an integrated laboratory facility in the hospital was officially sanctioned to provide "seamless lab services". The hospital is the first in the government sector to have a full-fledged emergency department, which includes triage area, resuscitation bay and colour-coded zones, per the Tamil Nadu Accident and Emergency Care Initiative (TAEI) guidelines. In 2015–2016, construction of four multi-storied blocks began at a cost of 1,244.8 million. Of these, three buildings, namely, rheumatology block, nephrology block, and urology and hepatology blocks, built at a cost of 553.3 million, were completed in February 2017, March 2017, and June 2018, respectively. Operations The entire hospital block has been remodelled with the reconstruction of the massive twin towers. These replace the original hospital buildings, which were more than a century old. While the hospital is managed by the medical superintendent, the dean is the head of the Madras Medical College (MMC) attached to the hospital. By 2006, the hospital started treating about 8,000 to 10,000 outpatients every day. The hospital also performed three