RAS question
Jaswant Sagar Dam is on which river?
Correct answer: (B) Luni.
Jaswant Sagar Dam is on the Luni River near Bilara in Jodhpur district, Rajasthan.
Explanation
Jaswant Sagar Dam is associated with the Luni, not with the Chambal, Bandi or Jawai. The dam stands near Bilara in Jodhpur district, and the verified Central Water Commission reservoir record gives JASWANT SAGAR against Luni. For RAS geography, that dam-river pairing is the point to retain: Jaswant Sagar belongs to the Luni system in western Rajasthan. Chambal, Bandi and Jawai are well-known Rajasthan river names, but they do not match Jaswant Sagar in the official dam-river record.
Why the other options are wrong
- (A) Chambal is an eastern Rajasthan river name, while the Central Water Commission dam-river record gives Luni for Jaswant Sagar.
- (C) Bandi may be a Rajasthan river name, but the Central Water Commission dam-river record assigns Jaswant Sagar to the Luni.
- (D) Jawai is linked with Jawai Dam, whereas Jaswant Sagar belongs to the Luni.
Concept
RAS geography often requires matching Rajasthan dams with their rivers and districts. Such pairings recur because they connect physical geography with irrigation and regional water-resource facts.