AHMEDABAD: In an order which would impact lakhs of people owning cars, the Gujarat high court on Wednesday directed the state government to pass necessary laws to make it compulsory for all four-wheelers registered in Gujarat to convert to natural gas within one year.

Further, the court gave two months to the state government to issue necessary orders to impose stringent restrictions to reduce pollution by fixing levels of emission to the minimum, at par with international norms. The order applies to both public and private vehicles running on petrol and diesel.