The Motor Vehicles Act passed by Parliament prescribes criminal prosecution for such offence. But the state law prescribed confiscation as an additional penalty.
The apex court said the state could not impose additional penalty when the central law had dealt with the offence.
The apex court thus allowed the petition of Madhya Pradesh transporters. Earlier, the Madhya Pradesh High Court had upheld the constitutional validity of the state law.
It had held that the provisions in the central and state laws were not repugnant to each other because they operated in totally different fields.
But on appeal, the Supreme Court struck down Sections 16 (7), 16(8), 20-A and 20-B of the state law and set aside the high court order.