The correct option is D Namma Metro
Bengaluru
Metro which is also known as Namma Metro, is the project which was undertaken
to improve the transport facility in Bengaluru. After Delhi metro, Namma Metro
is India's second largest metro system in terms of both length and number of
stations. It also contains the first underground metro line in South India. It has
a total length of 31.52 kilometres serving 30 stations.