The metro serves thousands of commuters daily , helping to tackle pollution and congestion . Journeys are fast , trains run on time and platforms are clean . Since the start of its first phase , it has saved around 300,000 tons of fuel , and its potential to reduce greenhouse emissions is `` quite substantial , '' according to Anumita Roychowdhury of India 's Center for Science and Environment . The transport system claims it 's the first in the country to offer green credits .
The metro serves thousands of commuters daily , helping to tackle pollution and congestion . Journeys are fast , trains run on time and platforms are clean . The transport system claims it 's the first in the country to offer green credits .