Health Minister J.P. Nadda paid a surprise visit to the Safdarjung Hospital here on Friday and directed the medical superintendent to upgrade its facilities to make it more patient-friendly.The minister, who arrived incognito at the premier hospital at 11 a.m., visited several key departments like those dealing with burns and plastic and maxillofacial surgery, as also the blood bank and the waste management wing.Inspecting the cleanliness in the hospital campus and outsourcing of private firms for its maintenance, the minister urged the medical superintendent to use the funds properly and efficiently.He also visited the waste management site located behind the hospital and inquired about the process of dumping biomedical and the general waste generated from the hospital.Explaining the process of the waste management at the hospital, the minister was told that Delhi Pollution Control Committee (DPCC) was involved in the hiring of the agencies to dump the waste. The minister also held a urgent meeting with the senior doctors of the hospital.Nadda was not satisfied with the arrangements and the facilities for treating dengue cases and he directed the senior doctors to increase the number of beds for such patients.