India, Dec. 19 -- Delhi witnessed intensified checks for BS-VI compliance and valid Pollution Under Control (PUC) certificates at its border points and petrol stations on Thursday, as the 'no PUC, no fuel' rule came into effect to tackle the city's deteriorating air quality.

Commuters without proper certification were denied fuel, resulting in fewer vehicles on the roads.

Queues were also seen at PUC centres as people brought older vehicles for emission checks. Commuters without proper certification were denied fuel, resulting in fewer vehicles on the roads.

The effects of the new pollution rules are being observed across the city. Commuters without proper certification were denied fuel, resulting in fewer vehicles on the roads.

Queue...