CSIR NET (CSIR-UGC National Eligibility Test (Sciences)) — Free Online Mock Test
For science PhD/JRF eligibility. 3 parts · 3h · 200 marks. Negative marking varies by part. · Official language: English & Hindi.
CSIR NET exam at a glance
CSIR NET full-length mock tests
Attempt 50 full-length CSIR NET mock tests, each a distinct question set built on the real 130-question, 180-minute pattern — with instant scoring and section-wise analysis. The first 3 are free.
CSIR NET key facts & eligibility
| Conducting body | The Council of Scientific & Industrial Research (CSIR) with the UGC, conducted by the National Testing Agency (NTA). |
|---|---|
| Official website | csirnet.nta.nic.in ↗ |
| Mode | A single computer-based paper in three parts — Part A (General Aptitude), Part B and Part C (subject-based) — over 3 hours, for 200 marks. |
| Frequency | Usually twice a year. |
| Scoring & marking | One 200-mark paper in five subjects — Life Sciences, Chemical Sciences, Mathematical Sciences, Earth Sciences and Physical Sciences. Part A is General Aptitude (answer 15 of 20, 30 marks); Part B is subject MCQs (70 marks); Part C is higher-order analytical questions (100 marks). There is negative marking (a fraction of the marks per wrong answer, varying by part). It qualifies candidates for JRF, Assistant Professor (Lectureship) and PhD admission. |
| Score validity | A JRF award has a fixed window to join a fellowship; Assistant Professor (Lectureship) eligibility does not expire. |
| Language | English and Hindi. |
Who is eligible for CSIR NET?
A Master’s degree (or equivalent) in a science subject with at least 55% (50% for reserved categories). For JRF the upper age limit is about 28 (with relaxations); there is no age limit for Assistant Professor (Lectureship) eligibility.
Last verified July 2026 against CSIR NET — NTA. Always confirm current details on the official website before you register.
CSIR NET section breakdown
The CSIR NET mock test on Wrexa Edge replicates the real exam's section structure — same names, same question count per section, same time limits. No inter-section breaks — the timer runs continuously.
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Part A — General Aptitude (20 Q)
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Part B — Subject (35 Q)
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Part C — Advanced Subject (75 Q)
CSIR NET scoring & marking scheme
Strategy: CSIR NET penalises wrong answers (-0.5 per mistake). Skip a question if you cannot eliminate at least 2 options — guessing blindly hurts your scaled score more than blanking.
Scale: CSIR NET (out of 200).
How CSIR NET is conducted
- Mode
- Test format
- Backtracking
- Mark for review
CSIR NET time strategy
With 130 questions in 180 minutes, you have about 83 seconds per question on average. Successful candidates aim for the following pacing on each section:
- Part A — General Aptitude (20 Q)
- Part B — Subject (35 Q)
- Part C — Advanced Subject (75 Q)
Wrexa Edge's analytics show your actual time-per-question after every mock so you can spot which sections you're losing time on.
CSIR NET topics covered
Across the 50 Wrexa Edge variants of CSIR NET, the following topics appear most often (sample distribution from one variant):
Part A — General Aptitude (20 Q)
- Reasoning — Classification (odd one out) · 3
- Reasoning — Number Series (arithmetic) · 1
- Reasoning — Number Series (squares) · 1
- Reasoning — Syllogism (transitive) · 1
- Reasoning — Syllogism (negative) · 1
- Reasoning — Syllogism (existential) · 1
- Reasoning — Direction sense · 1
- Reasoning — Direction sense (resultant) · 1
Part B — Subject (35 Q)
- Chemistry — Fundamentals · 12
- Biology — Fundamentals · 11
- Physics — Mechanics · 3
- Physics — Energy · 2
- Physics — Circular Motion · 2
- Physics — Electricity · 2
- Physics — Waves · 2
- Physics — Electromagnetism · 1
Part C — Advanced Subject (75 Q)
- Chemistry — Fundamentals · 25
- Biology — Fundamentals · 25
- Physics — Energy · 5
- Physics — Mechanics · 5
- Physics — Circular Motion · 4
- Physics — Electricity · 4
- Physics — Waves · 4
- Physics — Electromagnetism · 2
CSIR NET difficulty calibration
Advanced tier. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep.
For science PhD/JRF eligibility. 3 parts · 3h · 200 marks. Negative marking varies by part. · Official language: English & Hindi.
Verified content — Wrexa Edge's CSIR NET bank has been deeply curated with real exam-aligned content (estimated 100% syllabus coverage).
How Wrexa Edge prepares you for CSIR NET
- Real test-day interface
- 50 distinct variants
- Detailed analytics
- Spaced repetition (Notebook)
- Optional proctoring
- Free to start
Expert take: what CSIR NET really tests
CSIR NET (Sciences) is a single 200-mark paper split into three parts of rising difficulty — General Aptitude (Part A), subject MCQs (Part B), and higher-order analytical problems (Part C) — and Part C is where the exam is genuinely decided. Because there is negative marking that varies by part, smart attempt strategy matters as much as knowledge: you choose which questions to answer, so accuracy and selectivity beat blanket attempting.
Preparation tips
- Invest heavily in Part C (application-based) — it carries the most marks and separates rankers.
- Do not neglect Part A (General Aptitude) — it is quick, scoring marks.
- Answer selectively because of negative marking; attempt what you are confident on.
Common mistakes to avoid
- Preparing only for factual recall (Part B) and freezing on the analytical Part C.
- Over-attempting under negative marking instead of choosing questions wisely.
CSIR NET study plan
A phase-by-phase roadmap from your first concept to test-ready. Stretch or compress each phase to fit the time you have before your attempt.
- Rebuild your science subject from standard textbooks (Part B/C are subject-heavy)
- Study the official syllabus for your subject unit by unit
- Start General Aptitude (Part A) practice — quick, scoring marks
- Move to higher-order, application-based problems for Part C
- Solve CSIR NET previous-year papers subject by subject
- Keep an error log and mind the negative marking
- Take full-length timed mocks (200 marks, 3 hours)
- Balance attempts across Parts A, B and C for the best score
- Revise weak units and General Aptitude
Where CSIR NET can take you
A strong CSIR NET result opens up these careers and higher-study paths:
- Junior Research Fellowship (JRF)
- Assistant Professor
- PhD admission
- Research & academia
Best books & official prep for CSIR NET
- Subject-specific standard textbooks — Various
- CSIR NET subject guides (e.g. Trueman’s, Pathfinder) — Various
- CSIR NET previous-year papers — CSIR/NTA
- General-aptitude practice — Various
Official practice: CSIR/NTA publish the syllabus and past papers; Part C (application-based) is the differentiator, and negative marking rewards accuracy.
Previous-year papers: Official CSIR NET past papers are released and are the best practice, especially for Part C.
Frequently asked questions
- What is the CSIR NET exam pattern?
- CSIR-UGC National Eligibility Test (Sciences) contains 130 questions across 3 sections: Part A — General Aptitude (20 Q), Part B — Subject (35 Q), Part C — Advanced Subject (75 Q). Total duration is 180 minutes (about 83 seconds per question).
- Does CSIR NET have negative marking?
- Yes — CSIR NET carries negative marking of -0.5 per wrong answer and 2 per correct answer. Skipping is safer than guessing blindly.
- How is CSIR NET scored?
- Scaled score range: 0 to 200. CSIR NET (out of 200).
- How can I practise CSIR NET online for free?
- Wrexa Edge gives you 3 free full-length CSIR NET mock tests — with instant scoring, detailed explanations and analytics — plus 47 more with Pro. Start practising in under a minute, no card required.
- What is the difficulty level of CSIR NET?
- CSIR NET is rated Advanced difficulty on Wrexa Edge. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep. For science PhD/JRF eligibility. 3 parts · 3h · 200 marks. Negative marking varies by part. · Official language: English & Hindi.
- How long is the CSIR NET exam?
- CSIR NET runs for 180 minutes total across 3 sections. On Wrexa Edge the timer is enforced exactly as on the real exam — including no inter-section breaks.
- What topics are covered in CSIR NET?
- CSIR NET is split into: Part A — General Aptitude (20 Q), Part B — Subject (35 Q), Part C — Advanced Subject (75 Q). Each section is timed and weighted separately. For science PhD/JRF eligibility. 3 parts · 3h · 200 marks. Negative marking varies by part. · Official language: English & Hindi.
- What tools or aids are allowed during CSIR NET?
- No special tools are required.
- Is the CSIR NET test adaptive?
- No — CSIR NET is a fixed-form (linear) test. Every candidate sees the same number of questions per section.
- How many CSIR NET mock tests does Wrexa Edge offer?
- Wrexa Edge generates 50 distinct CSIR NET variants — each with different question content, not just shuffled options — the first 3 free for everyone and 47 more with Pro. That's 6500 unique practice questions in the real test-day interface.
- Is there a free CSIR NET test series 2026?
- Yes. The Wrexa Edge CSIR NET test series for 2026 gives you 3 free full-length mock tests (50 in total) plus subject-wise and topic-wise tests — instant scoring and detailed analysis, no card required.
- Are CSIR NET previous year question–style papers included?
- Every CSIR NET mock is modelled on the official exam pattern and the style of previous years' papers — the same 130-question structure, sections and marking — so your practice mirrors the real paper you'll sit.
- Which is the best free CSIR NET mock test online?
- Wrexa Edge's CSIR NET mock test replicates the real exam interface, timing and negative marking, with instant score, section-wise analysis and 50 fresh variants — a strong free choice for 2026 preparation.
- Can I take the CSIR NET mock test on mobile?
- Yes. CSIR NET mock tests run in any browser on mobile, tablet or desktop — no app or download needed. Start on your phone and your progress and analytics sync when you sign in.
- What is the CSIR NET syllabus?
- The CSIR NET syllabus maps to its 3 sections: Part A — General Aptitude (20 Q), Part B — Subject (35 Q), Part C — Advanced Subject (75 Q). Wrexa Edge's mock tests cover the complete syllabus topic by topic — see the topics-covered breakdown above — so you practise every area at real exam difficulty.
- What is the eligibility for CSIR NET?
- A Master’s degree (or equivalent) in a science subject with at least 55% (50% for reserved categories). For JRF the upper age limit is about 28 (with relaxations); there is no age limit for Assistant Professor (Lectureship) eligibility. Wrexa Edge focuses on realistic CSIR NET practice: 3 free full-length mocks in the exact exam pattern, ready whenever you are.
- When is the CSIR NET exam and how should I prepare?
- Official CSIR NET exam dates are announced by the conducting body for each cycle — check the latest notification for the current schedule. To be ready, follow a phased study plan and take full-length timed mocks; Wrexa Edge gives you 3 free CSIR NET mocks with instant scoring so you can track your readiness week by week.
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