RAS question
Which river is called 'Rajasthan ki Kamdhenu' (Wish-fulfilling cow)?
Correct answer: (D) Chambal.
The Chambal River is called Rajasthan ki Kamdhenu because it is the state's leading river for water availability and supports irrigation and hydroelectric power through linked dams and canal systems.
Explanation
Chambal is the right answer because RajRAS lists the Chambal River as Kamdhenu, alongside Charmanvati and Barahmasi. RajRAS also places Chambal first in the order of rivers by water availability, ahead of Banas and Mahi. Rajasthan calls Chambal its Kamdhenu because it supplies the maximum water to the state for irrigation and hydroelectric power through multiple dams and canal systems. For RAS, the point is not just a nickname; it connects river nomenclature with practical water resource geography, especially why Chambal matters more than the other listed rivers in state water availability.
Why the other options are wrong
- (A) Luni is a major Rajasthan river, but Chambal, not Luni, is identified as Kamdhenu.
- (B) Banas is not the Kamdhenu river; the question data identifies it as Van ki Asha, while RajRAS ranks it below Chambal for water availability.
- (C) Mahi is associated with southern Rajasthan in the question data, but RajRAS ranks it below Chambal and Banas for water availability, so it does not fit the Kamdhenu label.
Concept
This tests Rajasthan drainage and river nicknames, a recurring RAS geography area because exam questions often link a river's local name with its water-resource role. Chambal is especially important because the nickname is tied to irrigation, hydroelectric power and water availability.