These water harvesting techniques evolved in Rajasthan over 400 years ago
Khadin
Kulhs
Khadin
Solution:
Explanation for correct option:
Khadin: Khadin is a traditional rainwater harvesting system in Rajasthan by which the excess rainwater is collected in a reservoir.
Explanation for incorrect option:
Kulhs: Kulhs is an irrigation system practiced in the hilly regions of Himachal Pradesh.
Final Answer: The correct option is option(A).