Among the options provided, Bengaluru is not a harbor.
Cochin, Mangalore, and Kandla are all harbors located in India. Cochin is a major seaport in Kerala, Mangalore is a port city in Karnataka, and Kandla is a seaport in Gujarat. These ports serve as important hubs for maritime trade, handling cargo, and facilitating economic activities related to shipping and logistics.
On the other hand, Bengaluru is a landlocked city located in the state of Karnataka, far away from coastal areas. Being inland, Bengaluru does not have direct access to the sea, and thus it does not function as a harbor.
Therefore, the correct answer is "Bengaluru."