Dun valleys are found between which two Himalayan ranges?

Correct answer: Shiwalik and Lesser Himalaya

The direct answer is B: between the Shiwalik and the Lesser Himalaya. Dun valleys are long, relatively level valleys lying between the outer Shiwalik range and the Lesser, or Middle, Himalaya. Step by step: the Himalaya has parallel ranges; Shiwalik is the southern outer range; the Lesser Himalaya lies north of it; the valley between them is called a Dun. Dehradun is the best-known example, and its name itself helps recall the idea. Option A is wrong because Himadri and Karakoram are much higher northern ranges and do not define Dun valleys. Option C names ranges of central and western India, not the Himalaya. Option D names southern Indian ranges. Therefore B is correct. Memory cue: “Dun = valley between Shiwalik and Lesser Himalaya.”