# NDA PYQ Topic Wise: Questions by Topic (2016–2026)
> NDA PYQ topic wise: all 5670 questions from 42 official NDA papers (2016–2026), sorted by topic with official answers, with year-by-year counts.
Source: https://previousyearquestions.app/nda/topics/
Explore: NDA hub · Syllabus & pattern · NDA 2026
## Answer first
We tagged all **5670 questions** in 42 official NDA papers (2016–2026) by topic. In Mathematics, Algebra leads with 569 questions. In English, Vocabulary leads with 506 questions. In General Knowledge, Physics leads with 509 questions. Use the tables to see how often each topic appears each year, then open a topic for every question it has had with the official answer.
## Mathematics
All Mathematics topics on one page: [NDA Mathematics PYQs](/nda/topics/mathematics/). Mathematics topics by questions per paper (×N marks a year with N papers) in each year. The last column is the total across all 42 papers.
Most-asked Mathematics topics: [Algebra](/nda/topics/algebra/) (569), [Statistics and Probability](/nda/topics/nda-statistics-probability/) (410), [Differential Calculus](/nda/topics/differential-calculus/) (383), [Trigonometry](/nda/topics/nda-trigonometry/) (321), [Analytical Geometry (2D and 3D)](/nda/topics/analytical-geometry/) (299).
## English
All English topics on one page: [NDA English PYQs](/nda/topics/english/). English topics by questions per paper (×N marks a year with N papers) in each year. The last column is the total across all 42 papers.
Most-asked English topics: [Vocabulary](/nda/topics/english-vocabulary/) (506), [Grammar and Usage](/nda/topics/english-grammar/) (289), [Sentence Organisation and Improvement](/nda/topics/english-sentence-organisation/) (159), [Comprehension](/nda/topics/english-comprehension/) (96).
## General Knowledge
All General Knowledge topics on one page: [NDA General Knowledge PYQs](/nda/topics/general-knowledge/). General Knowledge topics by questions per paper (×N marks a year with N papers) in each year. The last column is the total across all 42 papers.
Most-asked General Knowledge topics: [Physics](/nda/topics/gk-physics/) (509), [Geography](/nda/topics/gk-geography/) (409), [Chemistry](/nda/topics/gk-chemistry/) (322), [History and Freedom Movement](/nda/topics/gk-history/) (291), [Current Events](/nda/topics/gk-current-events/) (212).
## How we tagged the papers
- **Source:** only official NDA papers published by the conducting body and hosted on our year pages. 2026: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2025: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2024: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2023: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2022: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2021: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2020: NDA (I & II) GAT; NDA (I & II) Mathematics · 2019: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2018: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2017: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2016: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics.
- **Topics:** one topic per question, following the UPSC NDA syllabus for Mathematics and the General Ability Test (English and General Knowledge).
- **Answers:** Answers come from the official UPSC answer keys (booklet series A) where they are hosted; papers without a hosted key show no answer.
- **Summaries** are ours, so you can scan a topic quickly. Open the official PDF for the full question.
## FAQ
### Which NDA topics have the most questions?
Mathematics: Algebra (569), Statistics and Probability (410), Differential Calculus (383). English: Vocabulary (506), Grammar and Usage (289), Sentence Organisation and Improvement (159). General Knowledge: Physics (509), Geography (409), Chemistry (322). Counts are totals across the 42 official NDA papers tagged here.
### Which NDA papers are included?
Only official papers that the conducting body published and that we host: 2026: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2025: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2024: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2023: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2022: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2021: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2020: NDA (I & II) GAT; NDA (I & II) Mathematics · 2019: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2018: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2017: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics · 2016: NDA (I) GAT; NDA (I) Mathematics; NDA (II) GAT; NDA (II) Mathematics.
### Are the answers official?
Answers come from the official UPSC answer keys (booklet series A) where they are hosted; papers without a hosted key show no answer.