What geomorphological process is primarily responsible for the formation of the sand dunes and arid undulating terrain found in southwestern districts of Haryana like Bhiwani, Mahendragarh, and Sirsa?

💡 Solution & Explanation

Aeolian processes, driven by prevailing winds carrying sand particles from the Thar Desert margins, have shaped the extensive dune fields and sandy plains in the southwestern tracts of Haryana. Fluvial action is restricted to river valleys, and glaciers never extended this far south. Wind deflation hollows and transverse dunes are common features here.