Work through year-wise UPSC Prelims papers from 2017–2026 across both GS Paper 1 and Paper 2 (CSAT).

About this Books
Oswaal Books · UPSC CSE Prelims · PYQ
10 Years Solved Papers: GS Paper 1 & 2
Year-wise GS and CSAT papers from 2017–2026, solved and mapped to UPSC official answer keys, for the 2027 exam.
Prepare with Purpose
Check solutions mapped to UPSC’s official answer keys up to 2026.
Use the 10-year subject-wise trend analysis to focus revision where it counts.
Study the fully solved 2026 paper to see the current exam standard.
Explore the Set
Year-wise General Studies papers (2017–2026) with 1000+ questions and detailed, official-key-mapped solutions.
Year-wise CSAT papers (2017–2026) with 800+ questions and elaborated, official-key-mapped solutions.
Why This Set
What's Inside
- ✓Two-book set: GS Paper 1 and GS Paper 2 (CSAT) covered together.
- ✓Year-wise coverage: Prelims papers from 2017–2026, including the fully solved 2026 paper.
- ✓Official-key-mapped solutions: Answers checked against UPSC’s official answer keys up to 2026.
- ✓10-year trend analysis: Subject-wise frequency signals to direct your revision.
- ✓Elaborated solutions: Step-by-step explanations to build concept depth, not just recall.
- ✓Attempt guidance: Topper strategy input for approaching Prelims papers.
Book Specifications
View Specifications
| Exam | UPSC CSE Prelims |
|---|---|
| Intended exam year | 2027 |
| Format | Set of 2 books: GS Paper 1; GS Paper 2 (CSAT) |
| Papers | Year-wise 2017–2026 |
| Practice questions | 1000+ (Paper 1); 800+ (Paper 2) |
| Answer keys | Mapped to UPSC official keys to 2026 |
| Extras | 10-year subject-wise trend analysis |
| Publisher | Oswaal Books |