In which city was the first metro rail service started in India?

In which city was the first underground railway (Metro) in India started?

In March 2026, the 'Vande Metro' was inaugurated between which two major hubs to reduce travel time for daily commuters?

In March 2026, which Indian city's metro network became the first in Asia to run entirely on 'Green Hydrogen' for its new phase?

In April 2026, which Indian city's metro rail system became the first in the world to be powered 100% by a combination of on-site solar and off-site green hydrogen?

In April 2026, which Indian city's metro network became the first to operate fully on 'Green Hydrogen' fuel cells for its auxiliary power?