The court's order came on a bunch of petitions filed by various individuals, including lawyers, who had challenged the AAP government's December 28, 2015 notification imposing the scheme which allows private cars bearing odd registration numbers to ply on odd dates and those with even numbers on even dates.
The petitions had contended that AAP government carried out a pick-and-choose policy against car owners, whereas 46 per cent pollution was caused by trucks.
Delhi High Court Bar Association President Rajiv Khosla, one of the petitioners, said the data submitted by the city government was not correct and the particulate matter across the capital showed a rising trend despite the scheme being in place since January 1.
Defending the scheme, the government had said it aimed at reducing congestion on the capital's roads that has further contributed towards lowering of pollution.
The AAP government had contended that particulate and nitrogen-oxide load from cars have come down during odd-even programme by as much as 40 per cent and higher share of benefits have come from reduction in the number of diesel cars.