Modern metro systems are among the safer ways to move in an Indian city, but they still need passenger discipline. If you hear a platform alarm, step back from the edge. If a train stops in a tunnel, wait for the PA — do not force doors or walk the tunnel unless staff order an evacuation.
Medical help
Tell the nearest staff member. Stations keep first-aid arrangements. For an ambulance use 108 or national emergency 112. Do not pull a non-emergency handle as a joke; metro bye-laws treat misuse as an offence.
Women and child safety
Use the reserved coach if you prefer it. If someone harasses you, move to another passenger group, inform staff at the next station, and call 112. Children should hold a guardian’s hand on escalators and stand behind the yellow line. After last train, do not wait on dark unpaid streets — pre-book a known cab or walk in a group to the hotel.
CCTV, fire and disaster
Cameras support investigation; they are not an excuse to film other passengers. In a fire alarm, do not use lifts. Follow green exit signs and staff. Third rail is live even when a train looks empty. Trackbed selfies are how people die in metro systems worldwide.