All battery-operated vehicles will have green number plates exhibiting registration mark in yellow and white for different categories.
The Ministry of Road Transport and Highways stated on Saturday: "All battery-operated vehicles shall now exhibit their registration mark in yellow colour on green background for transport vehicles and for all other cases in white colour on green background."
A notification to this effect was issued by the ministry on Friday.
Earlier, Transport Minister Nitin Gadkari said the clean energy vehicles will have distinctive number plates for their easy identification for preferential treatment.
To promote pollution-free vehicles, the government is keen on giving preferential treatment to such vehicles in parking, free entry in congested zones besides other proposed benefits like a concessional toll.