The correct answer is Kochi.
Kochi is a major port city in Kerala, India. It is known for its historical spice trade and its beautiful backwaters. The city is home to a number of historical landmarks, including the Chinese fishing nets, the Dutch Palace, and the Mattancherry Palace. Kochi is also a popular tourist destination, with a number of hotels, restaurants, and shops.
Kannur is a city in the northern part of Kerala. It is known for its beaches, its temples, and its wildlife sanctuaries. Kannur is also a major commercial center.
Thrissur is a city in the central part of Kerala. It is known for its temples, its churches, and its mosques. Thrissur is also a major cultural center.
Kollam is a city in the southern part of Kerala. It is known for its beaches, its backwaters, and its temples. Kollam is also a major commercial center.