Old cars that do not have certificates to prove they are not polluting the environment will have to stay off the roads in Delhi from April 1.
Drivers who bring such cars to fuel stations won't be given fuel, officials said.
At present, some fuel stations across the national capital have government authorised testing cabins that issue Pollution Under Control, or PUC, certificates. Car owners must get their vehicles checked once every year to renew their PUC certificates.
To make this system foolproof, every fuel station in Delhi will have a new device that can identify vehicles whose PUC certificates have expired.