Answer: Option C
Mumbai, Kolkata, and Cochin are all major seaports in India. Similarly, Chennai is also a major seaport located on the east coast of India, making it the same as Mumbai, Kolkata, and Cochin.
Chennai, formerly known as Madras, is the capital city of Tamil Nadu and is one of the largest cities in India. It is an important center for trade, commerce, and industry in South India, and its port handles a significant amount of cargo traffic.
Here are some relevant definitions and formulas related to seaports and cargo traffic:

• A seaport is a facility where ships can dock and load or unload cargo.
• Cargo traffic is the amount of cargo that is handled by a port over a given period of time.
• The metric ton (MT) is a unit of weight used to measure cargo traffic. 1 MT is equal to 1,000 kilograms or 2,204.62 pounds.

Chennai Port Trust is one of the oldest and busiest ports in India. It handles a wide range of cargo traffic, including:

• Container cargo: This refers to cargo that is transported in standard-sized containers that can be easily transferred between ships, trucks, and trains. Container cargo is typically measured in twenty-foot equivalent units (TEUs).
• Bulk cargo: This refers to cargo that is transported in large quantities, such as coal, iron ore, and grain. Bulk cargo is typically measured in metric tons (MT).
• Liquid cargo: This refers to cargo that is transported in tankers, such as petroleum products and chemicals. Liquid cargo is typically measured in metric tons (MT).

In conclusion, the correct answer to the given question is option C, Chennai, as it is a major seaport like Mumbai, Kolkata, and Cochin.