International Relations · 16 Jul 2026

Non-Proliferation Treaty nuclear weapon states

With reference to the erasure of the Mughal capital Shahjahanabad's identity in official memory, consider the following statements:

  1. The British demolished a substantial part of the Red Fort's palatial structures to build military barracks after the 1857 revolt.
  2. The walled city began to be referred to simply as "Old Delhi" only after the 1947 Partition, when large-scale demographic change occurred.
  3. The Shahjahanabad Redevelopment Corporation was, at the time of its 2026 renaming, the last surviving formal government body still using the name Shahjahanabad.

Which of the statements given above is/are correct?

AOnly one
BOnly two
COnly three
DAll four

Tests the ability to detect a single reversed causal fact embedded within an otherwise accurate statement set - distinguishing genuine comprehension of sequence and cause from surface-level topic recognition.

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This question is based on: Shahjahanabad Didn't Lose Its Name This Month - It Lost It in 1857
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About this question

Why in news

Renewed nuclear talks between Iran and world powers in Doha have stalled, reviving scrutiny of the JCPOA's 2018 collapse and the broader non-proliferation order.

Why for UPSC

UPSC's IR questions frequently hinge on a single reversed causal detail embedded among otherwise-correct statements - testing precision of sequence and cause, not just topic familiarity.

Prelims summary

NPT recognises 5 nuclear-weapon states (US, Russia, UK, France, China). India, Pakistan, Israel hold weapons outside the NPT. Iran's JCPOA compliance was IAEA-certified; the US withdrew in 2018 despite that compliance, not because of non-compliance.

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