Tamil Nadu has a well-developed network of:

The correct answer is: d) All of the above.

Tamil Nadu has a well-developed network of roads, railways, ports, and airports. The state has a total road length of over 1.2 million kilometers, which is the second-highest in India. The state also has a well-developed railway network, with over 3,000 kilometers of track. Tamil Nadu has two major ports, Chennai and Ennore, and two international airports, Chennai and Coimbatore.

The state’s well-developed infrastructure has helped to boost its economy. Tamil Nadu is one of the most industrialized states in India, and it is also a major exporter. The state’s infrastructure has also made it a popular destination for tourists.

Here is a brief description of each option:

• Roads: Tamil Nadu has a total road length of over 1.2 million kilometers, which is the second-highest in India. The state’s road network is well-maintained and provides easy access to all parts of the state.
• Railways: Tamil Nadu has a well-developed railway network, with over 3,000 kilometers of track. The state’s railway network is operated by the Southern Railway zone of the Indian Railways. The state has two major railway stations, Chennai Central and Egmore.
• Ports: Tamil Nadu has two major ports, Chennai and Ennore. Chennai is the largest port in India, and it is also one of the busiest ports in the world. Ennore is a major port for handling coal and other commodities.
• Airports: Tamil Nadu has two international airports, Chennai and Coimbatore. Chennai is the busiest airport in the state, and it is also one of the busiest airports in India. Coimbatore is a major airport for domestic flights.