New Delhi: Concerned over alarming pollution levels in the national capital, Delhi government has moved the National Green Tribunal seeking enhancement of the fine against vehicles which are without a valid pollution-under- control (PUC) certificate.

The Environment Department of Delhi government, in its plea before the green panel, has sought directions to enhance the imposition of penalty/fine to Rs 5,000 under Section 15 of the NGT Act as per 'polluter pays principle'.