The next time you are at a crowded railway station, look around. Cameras that recognise faces are watching, joining Indian law enforcement’s increasing reliance on advanced surveillance technology for security and crime prevention as activists worry about the impact on privacy.
The Indian Railways, which carries 7 billion passengers annually, has its own police force and surveillance systems to secure and monitor stations, trains and other facilities. The national transporter has put up facial recognition system (FRS) cameras at more than 200 stations, but is using only a portion of their surveillance strength. It’s running a pilot that will make

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