For an overburdened tertiary healthcare centre in India, GMCH is a remarkably clean hospital all things considering. This goes a long way in patient care as sanitation & overcrowding are some of the key determinants for nosocomial infections.
Nosocomial infections, aka hospital-acquired infections (HAIs), are infections that occur within 48 hours of hospital admission, 3 days of discharge or 30 days of an operation. 
They are unrelated to the original illness that brings patients to the hospital and neither present nor incubating as at the time of admission.
 Horan TC, Gaynes RP. Surveillance of nosocomial infections. In: Mayhall CG, editor. Hospital epidemiology and infection control. Philadelphia: Lippincott Williams and Wilkins; 2004. pp. 1659–702.