New Delhi: All taxis, buses and public transport vehicles, barring three-wheelers and e-rickshaws, will have to install location tracking device or GPS and an alert button from April 1. 

The road transport ministry has reiterated the deadline amid reports that most of the states had not done much to meet the target.

"From 1st April, 2018, passenger transport vehicles including taxis and buses are to be mandatorily equipped with GPS devices," the ministry tweeted. A senior official said there will be no extension to roll out these passenger safety measures in public transport vehicles.

These devices shall be fitted by the manufacturer or dealer or the operators.

Though initially the ministry had proposed mandatory installation of CCTV cameras in buses having more than 23 seats, the proposal was dropped due to privacy concerns. "Three-wheelers have been kept out of these mandatory installation of GPS and alert button since they are open. Passengers are more vulnerable in vehicles with closed structure," the official said.