The Chennai Metro Rail is a rapid transit system operational in:

Chennai and Coimbatore
Chennai only
Madurai and Coimbatore
All major cities

The correct answer is: b) Chennai only.

The Chennai Metro Rail is a rapid transit system serving the city of Chennai, India. It is the first metro rail system in the state of Tamil Nadu and the fourth in India. The first phase of the Chennai Metro Rail was inaugurated on 29 May 2011. The second phase of the Chennai Metro Rail is under construction and is expected to be completed by 2023.

The Chennai Metro Rail is a fully automated system with driverless trains. The trains run on elevated tracks and have a maximum speed of 80 km/h. The Chennai Metro Rail has a total length of 45.1 km and has 32 stations.

The Chennai Metro Rail is operated by the Chennai Metro Rail Limited (CMRL), a joint venture of the Government of Tamil Nadu and the Government of India. The CMRL is responsible for the construction, operation, and maintenance of the Chennai Metro Rail.

The Chennai Metro Rail has been a major success since its inception. It has helped to reduce traffic congestion in Chennai and has also improved the quality of life for the people of Chennai. The Chennai Metro Rail is a model for other cities in India and is a shining example of what can be achieved when the government and the private sector work together.

The other options are incorrect because:

  • Option a) Chennai and Coimbatore is incorrect because the Chennai Metro Rail is only operational in Chennai.
  • Option c) Madurai and Coimbatore is incorrect because the Chennai Metro Rail is only operational in Chennai.
  • Option d) All major cities is incorrect because the Chennai Metro Rail is only operational in Chennai.