Mahindra, India's top sport-utility vehicle (SUV) maker, is among the worst hit by the ban because it only has diesel SUVs, several with engines of more than 2,000 cc in capacity that cannot be sold in the capital until March 31.
"We are looking at options ... we will have a petrol option available in most of our vehicles in the medium term," Pawan Goenka, Mahindra's executive director, told reporters on Friday.
The ban ordered by the Supreme Court on Wednesday has unsettled India's car industry. It says an uneven, haphazard policy makes it hard to plan investment and allows damaging regulatory arbitrage across states.
A World Health Organization study showed 13 of the world's 20 most polluted cities are in India, and Delhi tops the list.
Dealers selling cars made by Mahindra and rivals such as Toyota Motor Corp now have hundreds of unsold vehicles they will need to move to dealerships elsewhere in the country, or return to the makers.
More From This Section
Mahindra has more than 1,000 unsold cars with its dealers in Delhi and the surrounding region, where the ban is applicable, Goenka said. The automaker makes about two percent of total sales in the area.
On Friday, Mahindra unveiled its first petrol engine, developed at a total cost of Rs 500 crore ($75.4 million), for a new compact vehicle, KUV100, that will be launched in January. It is now working on petrol engines for its bigger vehicles including the Scorpio and XUV500.
For the automaker, the ban is also a chance to push sales of its electric cars.
Mahindra sells three electric cars in India and has three in the pipeline but would like higher government incentives so it can reduce the price of the cars and spur demand, said Goenka.
"We have to look at the long-term view that the court will take," he said.
($1 = 66.3397 Indian rupees)