Prelims practice, paper by paper and topic by topic

UPSC Prelims, from Orchestrate Consulting Services LLP, helps Civil Services aspirants prepare for the Preliminary Examination, the first stage of the UPSC Civil Services Examination.

Our mission

The Prelims rewards breadth, accuracy and calm under a two-hour clock, and it punishes guessing. We help aspirants build all three with the real past papers of both GS Paper I and CSAT, practice by subject, and timed mocks, in English or Hindi.

Modern technology, in service of preparation

Preparing for the Prelims should not depend on photocopied papers and guesswork about where your marks go. UPSC Prelims uses modern tooling to make every practice hour count:

  • AI-assisted explanations turn every wrong answer into a short, source-grounded lesson — so review takes minutes instead of hours.
  • Adaptive practice tracks which subjects keep costing marks and surfaces more questions from those areas, automatically.
  • Bilingual question banks let candidates practise in the language they will sit the exam in — not just in English.

What we offer

  • Previous-year papers GS Paper I and CSAT for every year since 2011.
  • Topic-wise practice Polity, History, Geography, Economy, Environment, Science & Technology and more, plus the CSAT sections.
  • Timed mock tests 100 questions on a 2-hour timer.
  • English and Hindi Practise in either, and switch any question to the other.
  • Progress analytics See which subjects keep costing you marks, in one view.
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