Step 1: Understanding India’s tea exports.
India is one of the world’s leading producers and exporters of tea. Most of the export activity happens through ports located in tea-growing regions.
Step 2: Analyzing the options.
(A) Kochi: Important for spices, but not the largest for tea.
(B) Kolkata: Correct — being near Assam and West Bengal, which are the largest tea-producing regions, Kolkata port is the largest tea exporting port in India.
(C) Paradip: Mainly known for minerals and coal.
(D) Mumbai: Handles a variety of exports but not dominant in tea.
Step 3: Conclusion.
Hence, the largest tea exporting port in India is Kolkata.