Which Indian geography term is associated with identity or classification “the parallel located at about 23°30′ north latitude” and also with “passes through the central part of India”?

Correct Answer: Option A — Tropic of Cancer. Tropic of Cancer is correct because it is the parallel located at about 23°30′ north latitude. It is also associated with passes through the central part of India, which provides a second reliable identifying clue. These features are standard physical-geography facts and are useful for map-based and statement-based competitive-exam questions. Why the other options are incorrect: Option B — Indian Standard Meridian: It is the longitude used to determine Indian Standard Time; this is the specific geographical association of Indian Standard Meridian. Option C — Himalayan Mountains: It is young fold mountains along India's northern margin; this is the specific geographical association of Himalayan Mountains. Option D — Northern Plains: It is an extensive alluvial plain; this is the specific geographical association of Northern Plains. Exam Takeaway: Connect Tropic of Cancer with “the parallel located at about 23°30′ north latitude” for quick revision.