New Delhi, Sept. 10 -- New Delhi: The Union government is working on fuel efficiency norms for the country's massive two-wheeler market, according to three people aware of the development, after tightening similar regulations for cars and trucks in a bid to cut crude oil imports and meet net zero carbon emission goals by 2070.

The ministry of road transport and highways, the Bureau of Energy Efficiency (BEE), the Bureau of Indian Standards (BIS), and the government's think-tank Niti Aayog have started initial discussions on a policy to regulate fuel efficiency of two-wheelers and nudge automakers towards producing cleaner vehicles, one person said, requesting anonymity.

"The discussion on two-wheeler fuel efficiency norms is in very ear...