Explanation: Tamil Nadu, a state in southern India, has a significant maritime presence due to its extensive coastline. The state is home to several ports, but among these, Chennai and Tuticorin are classified as major ports. The distinction between major and minor ports is based on their management and the volume of trade they handle.
Major ports in India are those that are managed by the central government through the Ministry of Shipping. These ports are strategically important and handle a large volume of cargo, both domestic and international. They are equipped with modern facilities and infrastructure to support large-scale maritime operations.
Chennai Port, also known as Ennore Port, is one of the oldest and largest ports in India. It is located on the Coromandel Coast and serves as a major gateway for international trade. The port handles a wide range of cargo, including containers, automobiles, and bulk goods. It is a significant contributor to the economic activities of Tamil Nadu and the surrounding regions.
Tuticorin Port, located on the southeastern coast of Tamil Nadu, is another major port. It is known for its deep-water facilities and is a key player in the export of minerals, particularly limestone and dolomite. The port's strategic location makes it an important hub for maritime trade in the region.
In contrast, minor ports are managed by the state government and typically handle a smaller volume of cargo. They are often used for local trade and may not have the same level of infrastructure and facilities as major ports.
Therefore, when considering the major ports in Tamil Nadu, both Chennai and Tuticorin are significant contributors to the state's maritime trade and economic activities. This makes option D, which includes both ports, the correct answer.