The Supreme Court on Monday left the door open to allow probe into whether all vehicle makers in India violated environmental norms, and said that it was up to the National Green Tribunal (NGT) to decide whether it wanted to widen the net or examine only Volkswagen India. The observation by the top court came on a plea of Volkswagen India which said that it was being singled out and unfairly targeted as NGT had not ordered tests against any other vehicle maker. Volkswagen India has moved the top court asking it to set aside the Rs 100 crore fine

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