Who is Narendra Patil? The Mumbai volunteer known as the 'Human Indicator' spends two hours every weekday helping commuters navigate Dadar station during peak hours. A viral Instagram video has brought attention to his selfless service, with social media users praising his efforts to guide thousands of local train passengers. 👍 Who Is Narendra Patil? ‘Human Indicator’ Helping Mumbai Local Train Passengers Navigate Dadar Station .