RAS question
Which district of Rajasthan shares the longest international border with Pakistan?
Correct answer: (C) Jaisalmer.
Jaisalmer district shares Rajasthan's longest international border with Pakistan, with 464 km of border attached to the district.
Explanation
Jaisalmer is the right answer because the Rajasthan Forest Department's Desert National Park management plan states that Jaisalmer district lies in the Thar Desert, is bounded by Pakistan on its west and north, and has 464 km of international border attached to it. This makes Jaisalmer the Rajasthan district with the longest Pakistan border. The broader state context also matters: the official Forest Department page says Rajasthan's western boundary forms part of the Indo-Pak international boundary for 1,070 km and touches Barmer, Jaisalmer, Bikaner and Ganganagar. Among these border districts, Jaisalmer's 464 km stretch is the longest.
Why the other options are wrong
- (A) Bikaner is one of the Rajasthan districts touched by the Indo-Pak international boundary, but its border is shorter than Jaisalmer's 464 km.
- (B) Barmer has a significant international border with Pakistan, but it is not the longest because Jaisalmer has the 464 km stretch.
- (D) Sri Ganganagar is also listed among the districts touched by Rajasthan's Indo-Pak boundary, but its border length is shorter than Jaisalmer's.
Concept
This tests the Rajasthan geography syllabus area on state boundaries and district-wise border facts. It recurs in RAS because map-based border questions are a compact way to test location, district recognition and Rajasthan-Pakistan boundary awareness together.