Heavy rainfall on the Konkan coast is related to what?

Correct answer: Arabian Sea branch and Western Ghats

The direct answer is A: heavy rainfall on the Konkan coast is related to the Arabian Sea branch of the southwest monsoon and the Western Ghats. Moist winds from the Arabian Sea move toward the west coast. When these winds meet the Western Ghats, the mountains force them to rise. Rising air cools, water vapour condenses, and heavy orographic rain falls on the windward western side, including much of the Konkan coast. Option A is correct because it identifies both the moisture source and the relief that causes uplift. Option B is wrong because the Thar Desert is dry and the Aravalli range does not explain the heavy Konkan rainfall. Option C is wrong because the Konkan coast is on the wet windward side of the Western Ghats, not in the Himalayan rain shadow. Option D is wrong because western disturbances mainly bring winter weather to northwestern India, not the main summer monsoon rain of Konkan. Memory cue: Arabian Sea branch meets Western Ghats—west coast gets heavy rain.