"Let us assist them (NGT) and not discourage them," a bench of Chief Justice H L Dattu and Justice Arun Mishra said while dismissing a plea filed by a lawyer seeking setting aside of the decision of the green panel.
The bench further said the NGT was "only repeating the orders passed by Constitutional courts (SC/HCs) in the past."
"All vehicles, diesel or petrol, which are more than 15 years old shall not be permitted to ply on the roads and wherever such vehicles of this age are noticed, the concerned authorities shall take appropriate steps in accordance with law including seizure of the vehicles in accordance with the provisions of the Motor Vehicle Act.
Lawyer Vishaal Shripati Jogdand challenged the order in the apex court on various grounds including that the NGT had no jurisdiction to hear a case which was of the nature of a public interest litigation.
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Even bringing CNG in 1997-98, did not result in reduction of air pollution and hence, an investigation be undertaken to find out the reasons for it, he said.
The bench, however, was not inclined to hear the plea in detail and dismissed it after a brief hearing.
Earlier, the NGT, besides banning 15-year-old diesel and petrol vehicles, had also said that no person shall be permitted to burn plastic or any other material in the open.