Why does most of India remain dry in winter despite rain in some parts of North India?

Correct answer: Rain occurs in limited areas due to western disturbances

The direct answer is A: rainfall occurs in limited areas because of western disturbances. Winter in most of India is comparatively dry because the main southwest monsoon has withdrawn and the winter winds are generally dry over much of the country. Western disturbances are extra-tropical weather systems from the west that bring light winter rain to parts of north-western India and snowfall in the western Himalayas. Option A is correct because it explains both facts: some northern areas receive rain, while most regions remain dry. Option B is wrong because the monsoon is not active across the whole country in winter. Option C is wrong because loo is a hot, dry summer wind and does not cause winter rainfall. Option D is wrong because the Bay of Bengal does not dry up; it remains a water body, although winter circulation does not produce widespread rain over India. Remember: “winter rain in the northwest means western disturbances, not the summer monsoon.” The key is that the rainfall is regional, not nationwide.