CSIR NET Life Sciences Previous Year Question Papers
Ten CSIR NET Life Sciences previous year question papers, from June 2023 to December 2025, shift-wise, each retyped from the official paper and checked against the official final answer key. Every PDF has all three parts, a subject-by-subject analysis of what Parts B and C asked, the topic of every answer, and 5 tricky questions solved step by step.
Everything you need to practice one paper properly
Paper at a glance
Which subjects and topics this paper asked, on one page, before you start.
Clean questions
Every question retyped on clean A4 pages. No zooming into blurry scans.
Checked answer key
Matched to the official final key, with the topic of every question.
5 solved questions
The trickiest ones, explained step by step.
Every explanation, free
Take the paper as a timed mock on Test Manthan and see the explanation of every question after you submit.
One-time form: fill it once and every paper on this page downloads straight away.
Every CSIR NET Life Sciences paper, newest first
| Year | Paper | Practice | |
|---|---|---|---|
| 2025 | DecemberNewest | Get the PDF | Free mock test → |
| June | Get the PDF | Free mock test → | |
| 2024 | December · Shift 1 | Get the PDF | Free mock test → |
| December · Shift 2 | Get the PDF | Free mock test → | |
| June · Shift 1 | Get the PDF | Free mock test → | |
| June · Shift 2 | Get the PDF | Free mock test → | |
| 2023 | December · Shift 1 | Get the PDF | Free mock test → |
| December · Shift 2 | Get the PDF | Free mock test → | |
| June · Shift 1 | Get the PDF | Free mock test → | |
| June · Shift 2 | Get the PDF | Free mock test → |
See the pattern across all these papers
CSIR NET Life Sciences Unit-Wise Weightage and Important Topics
2,593 questions · 19 papers · 2018 to 2025
Get the free PDFCSIR NET Life Sciences PYQ Analysis: Part A, B and C
1,986 questions · Parts A, B and C · 2018 to 2025
Get the free PDFHow to Prepare for GATE, CSIR NET and IIT JAM During College
4 pages · 6 methods · 3 worksheets
Get the free PDFThe CSIR NET Life Sciences guide: syllabus, pattern, eligibility, cutoffs and dates →
Questions students ask
145 questions in three parts, and you answer 75 of them:
Part A: 20 questions, answer 15, +2 for right and −0.5 for wrong
Part B: 50 questions, answer 35, +2 / −0.5
Part C: 75 questions, answer 25, +4 / −1
The paper is 200 marks in 3 hours, and all 10 papers here follow this pattern.
Across these 10 papers, the top five subjects in Parts B and C (1,250 questions) are:
Molecular Biology: 129
Ecology: 123
Biochemistry: 111
Evolution & Behaviour: 109
Genetics: 108
In June and December of 2023 and 2024, the exam was held in two shifts with different papers. Both shifts are here.
Yes. Every question and option is from the official paper, retyped by our team so every question is clean and easy to read. Every answer is checked against the official final answer key, and where a question was dropped or its answer changed, the PDF says so.
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