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Environment & Ecology question from UPSC CSE-Prelims, 2026

Which of the following with reference to Indian States is/are not correct?
1. Uttar Pradesh shares its boundary with the highest number of other Indian States.
2. Rajasthan shares the longest international border among all Indian States.
3. Sikkim is the only State that shares its boundary with just one other Indian State.

Last updated Jun 5, 2026
Correct Answer: Option C — 2 and 3
Explanation of the Statements:
Statement 1 is correct: Uttar Pradesh shares its border with the highest number of states—8 states (Uttarakhand, Himachal Pradesh, Haryana, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, and Bihar) plus 1 Union Territory (Delhi).

Statement 2 is incorrect: West Bengal shares the longest international border among all Indian states (running approximately 2,217 km along Bangladesh). While Rajasthan has a massive international border with Pakistan (1,037 km), it is not the longest.

Statement 3 is incorrect: Sikkim is not the only state that shares its boundary with just one other Indian state. Meghalaya also shares its land border with only one Indian state (Assam), with the rest of its boundary touching Bangladesh. (Sikkim shares its domestic border only with West Bengal).
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.

About this question

UPSC CSE 2026 Prelims

Details

Exam UPSC CSE
Stage Prelims
Year 2026
Subject Environment & Ecology
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