The Supreme Court today ruled that only CNG taxis will be allowed to run in Delhi and NCR from May 01.
The apex court said all radio taxis, app-based cab operators will have to switch to CNG from tomorrow.
The top court also refused to extend the April 30 deadline for taxis to convert into CNG.
Taxi owners had pleaded before the court that there is no technology available in the market to convert a diesel car into one that uses CNG.
The apex court told the operators that it gave sufficient time for private taxis to convert to CNG and it is not inclined to extend the deadline.