India, Nov. 7 -- A day after the Delhi government announced that it would roll out the odd-even scheme to curb vehicular emissions, the Supreme Court on Tuesday termed the scheme as "optics" even as it questioned its efficacy and success in the past in reducing the dangerously high pollution levels in the national capital.

It also sought response of the Aam Aadmi Party (AAP)-led Delhi government by Friday on alternative ways the court suggested to reduce vehicular pollution.

The apex court's observations came on a day the Delhi government had planned to announce details of the implementation of the scheme, including exemptions and penalties to be imposed. However, following the SC's directions on Tuesday, Delhi environment minister Gopa...