The court had passed an order on October 24 placing a ban on use of furnace oil and pet coke in states of Uttar Pradesh, Haryana and Rajasthan from November 1.
Rajasthan, Uttar Pradesh and Haryana had on December 13 last year "volunteered" before the court to file affidavits of chief secretaries withdrawing the suggestion that the order was passed by the top court without prior notice to them.
When the matter came up for hearing today before a bench comprising Justices Madan B Lokur and Deepak Gupta, it noted that no affidavit was filed by Rajasthan's chief secretary despite sufficient time granted for this purpose.
"It may be mentioned that the chief secretary of the state of Haryana and the chief secretary of the state of UP have already filed affidavits. Therefore, we are unable to understand why the chief secretary of the state of Rajasthan is unable to file an affidavit in time," the bench said.
More From This Section
During the hearing, Additional Solicitor General A N S Nadkarni, representing the Ministry of Environment, Forest and Climate Change (MoEF), informed the bench that they have come out with notifications on pollution emission standards for 21 categories of industries in Delhi-national capital region.
He, however, said that the MoEF would file its affidavit giving all the details.
The court said it would hear thermal power plants matter on February 16.
The Centre had earlier informed the top court that the Central Pollution Control Board (CPCB) has issued a direction prohibiting the use of pet coke and furnace oil until further orders in the states of Uttar Pradesh, Rajasthan and Haryana.
The use of pet coke and furnace oil is already prohibited in Delhi.
The court was hearing a PIL filed in 1985 by environmentalist M C Mehta who had raised the issue of air pollution in the Delhi-NCR.