India, Sept. 21 -- The city's ambitious electric bus project, involving a fleet of 500 buses, is likely to be delayed due to a lack of clarity on routes and a delay in setting up a special purpose vehicle (SPV), officials said. The service was expected to be operational by the end of 2025 in time for the opening of Noida International Airport at Jewar.

"The formation of a special purpose vehicle is in process, and it will take time to get the same into active mode. Also, the authority is likely to engage an agency that will carry out the survey to develop required supporting services to run bus service," said SP Singh, general manager of Noida authority.

Officials said the absence of supporting infrastructure such as depots, stands, and...