Which Indian geography term is associated with exam-relevant association “the Luni is its important seasonal river system” and also with “an arid sandy region also called the Great Indian Desert”?

Correct Answer: Option D — Thar Desert. Thar Desert is correct because it is the Luni is its important seasonal river system. It is also associated with an arid sandy region also called the Great Indian Desert, 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 A — Western Coastal Plain: It is Kerala's backwaters are a notable feature of its southern part; this is the specific geographical association of Western Coastal Plain. Option B — Eastern Coastal Plain: It is the Northern Circars and Coromandel Coast are its major sections; this is the specific geographical association of Eastern Coastal Plain. Option C — Indian island groups: It is Barren Island in the Andaman Sea is associated with India's active volcano; this is the specific geographical association of Indian island groups. Exam Takeaway: Connect Thar Desert with “the Luni is its important seasonal river system” for quick revision.