Which one of the following ports shown on the rough outline map of India is a riverine port?

1. The question asks to identify a riverine port from the locations marked on the map. 2. A riverine port is located on a river, often some distance inland from the sea coast. 3. Location 1 appears to be on the west coast (likely Kandla or Mumbai). Location 2 is on the east coast (perhaps Chennai or Visakhapatnam). Location 4 is also on the east coast, further south (maybe Tuticorin). 4. Location 3 is situated inland on what appears to be the Hooghly River, representing Kolkata Port (including Haldia Dock Complex further downstream). Kolkata is a classic example of a major riverine port in India. 5. Therefore, location 3 represents the riverine port.