The Delhi Congress also alleged that the odd-even vehicle number formula is "pre-mature, "ill-conceived and without preparations".
"The restriction announced on plying of vehicles is an easiest knee-jerk reaction after Delhi High Court's harsh comments on pollution issue. BJP does not support such moves," party's Delhi unit chief Satish Upadhyay said in a statement.
Upadhyay said the Government has not presented any plan on how the ban will be executed and found the announcement as "lacking" vision.
"BJP is serious about the issue and believes that tough measures need to be taken to curb pollution. BJP believes that a composite plan needs to be made to fight against pollution on the basis of a study," he added.
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Upadhyay also claimed that upper and middle class segment of city's populace, which uses private vehicles as mass transport system, would be forced to buy alternate number vehicles if the ban realises.
Delhi Congress chief Ajay Maken said his party was not opposed to the move "as an idea", but added, the odd-even vehicle number formula is "pre-mature" and "ill-conceived" without preparations.
Maken also picked loopholes in city's infrastructure including dearth of parking space and mass transportation system, which he said, doesn't provide last mile connectivity.
Maken also found implementing Beijing-like solution to Delhi's pollution woes as "absurd" given the latter has its own set of traffic problems.
He claimed the odd-even vehicle number formula has failed in big cities like Mexico City.
In a radical step to curb alarming air pollution, Delhi Government today restricted plying of private vehicles bearing odd and even registration numbers to alternate days from January 1 in the national capital.
The measures were announced following an emergency meeting chaired by Chief Minister Arvind Kejriwal, a day after the Delhi High Court compared the city to a "gas chamber".