The Civil Services (Main) Examination 2025 Zoology Paper-II question paper is now available for candidates who appeared for the exam and for those preparing for future attempts. This paper is especially important for aspirants who have chosen Zoology as their optional subject, as it reflects the latest UPSC question pattern, topic weightage, and answer-writing expectations. By going through the official question paper, candidates can clearly understand what kind of analytical depth and subject clarity the Commission expects at the Mains level.
These papers are not just for curiosity; they are a practical preparation tool. When you analyse Zoology Paper-II, you get clarity on recurring themes such as animal behaviour, developmental biology, immunology, and applied zoology. It also helps aspirants judge whether their optional strategy is working or needs correction. From my own preparation experience and feedback from toppers, solving actual UPSC papers under timed conditions is far more effective than reading guides alone. That is why having access to the official 2025 question paper matters for both fresh and repeat candidates.
About Civil Services (Main) Examination Zoology Paper – II
Zoology Paper-II in the UPSC Mains focuses on advanced and applied areas of zoology. It tests not just memory but conceptual clarity, scientific reasoning, and the ability to present structured answers within word limits.
The paper is descriptive in nature and carries a total of 250 marks, just like other optional papers.
Key Details of Zoology Paper – II (Mains 2025)
| Particulars | Details |
|---|---|
| Exam Name | Civil Services (Main) Examination 2025 |
| Optional Subject | Zoology |
| Paper | Paper – II |
| Maximum Marks | 250 |
| Exam Type | Descriptive |
| Conducting Authority | UPSC |
What Zoology Paper – II Usually Covers
Based on the 2025 paper pattern and previous trends, the questions are generally framed from the following areas:
- Animal behaviour and evolutionary biology
- Developmental biology and genetics
- Immunology and molecular biology
- Applied zoology, including pest management and aquaculture
- Current relevance of zoological concepts in environmental and health studies
Many questions require examples, diagrams, and linkage with real-world applications, which makes this paper scoring if prepared properly.
Why You Should Download the 2025 Question Paper
Going through the Zoology Paper-II question paper helps you:
- Understand the actual difficulty level of the 2025 exam
- Identify important topics for future attempts
- Improve answer-writing structure and time management
- Compare static syllabus coverage with current question trends
Even if you are targeting UPSC 2026 or 2027, this paper is a must-read.
Zoology Paper – II Question Paper PDF Download
Aspirants can easily download the Civil Services (Main) Examination 2025 Zoology Paper-II question paper from the official UPSC website. Here’s how to do it:
- Visit the official UPSC website
- Go to the “Examinations” section
- Click on “Previous Year Question Papers”
- Select “Civil Services (Main) Examination”
- Choose the year 2025
- Click on “Zoology – Paper II”
- Download the PDF for future reference
N.B: If you want to download the question paper without any difficulty, you can easily download it by Click here.
It is advisable to save the PDF and also take a printout if you plan to practise answer writing.


















