In July 2008, the state governments of Uttar Pradesh, Haryana, Rajasthan and Delhi had notified a common transport agreement that would allow unrestricted movement of each state’s buses, taxis and autos in the entire region. At present, other states’ vehicles are either barred from entering other states or have to pay a hefty toll.

But this much anticipated protocol, almost a boon for anti-state commuters, is now caught in a wrangle with the Delhi government and the NCR Planning Board mulling a few changes in the colour code. Transport department officials said the planning board in January had suggested all permitted cabs and autos be painted white, with a blue strip for identification. No colour code for buses has been fixed yet.

But in a meeting on February 25, attended by all stakeholders, the traffic police reportedly said these vehicles might look too similar. An official said: “The licence plate is not enough to identify vehicles from each state. There has to be a unique feature on a state’s vehicles so that it can be identified from a distance.”

The protocol suggests that a vehicle can only travel to and fro according to the passenger’s requirements. The official said: “The police will have to ensure that a vehicle entering Delhi goes back after dropping the passenger and does not ferry people here.” He added: “Besides, the colour code is also similar to that of tourist cabs. This may lead to confusion.”

Delhi’s Transport Commissioner R K Verma, along with officials from other states, will now approach the Ministry of Shipping and Transport to formalise an appropriate colour scheme. The distribution of forms for cab and auto permits — slotted for February 28 — has been also postponed.