CESL intends to deploy 5,450 single-decker buses and 130 double-decker buses in five metropolises - Bangalore, Delhi, Surat, Hyderabad, and Kolkata - in the first phase of its 'Grand Challenge' scheme.
The Delhi government had announced in January that the government will soon make pollution-under-control certificates (PUCC) mandatory to refuel at vends in the city, in a bid to tackle the city`s crippling air pollution levels, much of which is caused by vehicles.