This #Nirbhaya number is only for Women traveling in Mumbai trains, nor countrywide, nor regular police.
This number was launched in Year 2015 for Railway Police, Mumbai
The railway police on Monday launched the Nirbhaya helpline, an exclusive WhatsApp number where women commuters can send complaints, pictures and videos on women safety and related issues. The number  has been linked to a network of computers at the police headquarters’ control room and will be manned 24×7. The data would be monitored on a computer.
On Monday, there were more than 150 messages, while the control room was being set up at Sandhurst Road. “Commuters welcomed the move, some sent messages to verify and many others congratulated,” a senior railway police official said.