Updated on 27 Feb 2026
By Silky, Author
CSIR NET 2025 exam was conducted on 18 December 2025 in two shifts for all five subjects.
Overall CSIR NET exam difficulty was moderate, as reported by most candidates.
Questions were fully based on the official syllabus, with no out-of-syllabus surprises.
CSIR NET 2025 cut-offs were released separately for JRF, Assistant Professor, and PhD-only categories.
CSIR NET exam 2025 was held on December 18, 2025 in two shifts. The authorities conducted the exam for all five subjects on the same day. According to the candidates, the level of the CSIR NET 2025 was moderate. Candidates were able to attempt 60 to 70 questions with 90% accuracy. Also, none of the questions were from out of syllabus. Those who qualify for the CSIR NET cut off marks 2025 will be offered a job as Assistant Professor and Lecturer.
CSIR NET exam analysis 2025 is now released online. As per the candidates, overall, the difficulty level was moderate. Candidates who were well prepared well able to attempt 60 to 70 questions with high accuracy. Know more about the subject-wise CSIR NET 2025 exam analysis.
| CSIR NET Life Science 2025 Difficulty Level & Good Attempts (Overall Analysis) | ||
| Section | Difficulty Level | Good Attempts (Approx.) |
| Part A | Easy | 9–11 |
| Part B | Easy to Moderate | 25–30 |
| Part C | Easy to Moderate | 15–20 |
| Overall / Total | Easy to Moderate | 60–70 |
| CSIR NET Chemical Science 2025: Difficulty Level & Good Attempts | ||
| Part | Difficulty Level | Good Attempts (Approx.) |
| Part A | Easy to Moderate | 10 – 15 |
| Part B | Moderate | 15 – 20 |
| Part C | Moderate | 20 – 25 |
| Overall / Total | Moderate | 60 – 70 |
| CSIR NET Physical Science 2025 Difficulty Level & Good Attempts | ||
| Section | Difficulty Level | Good Attempts (Approx.) |
| Part A | Difficult | 7–10 |
| Part B | Easy | 30–35 |
| Part C | Moderate | 10–15 |
| Overall / Total | Moderate to Difficult | 50–60 |
| CSIR NET December 2025 Mathematical Sciences Exam Analysis | |||
| Section | Questions | Good Attempts (Approx.) | Difficulty Level |
| Part A | 20 | 15 | Easy–Moderate |
| Part B | 40 | 25 | Moderate |
| Part C | 60 | 20 | Moderate–Difficult |
| Overall / Total | 120 | 60 | Moderate |
Candidates who have appeared for the CSIR NET exam on 18 December, 2025 have reported the questions that were asked in the exam. Know about the major questions in the section below for all subjects.
What is the role of GLUT-5 in cellular transport, and where is it primarily found?
How does the ribosome-attached endoplasmic reticulum (RER) differ in function from free ribosomes?
Explain the role of γ-tubulin in spindle assembly during cell division.
Which developmental processes in Drosophila are commonly studied to understand gene regulation?
What is asymmetric cell division in plants, and why is it important for development?
Describe the key stages involved in leaf development.
Explain the era-based classification of geological time.
Differentiate between K-selection and r-selection strategies with examples.
Arrange the major mass extinction events in their correct chronological order.
What are TAL effectors, and how are they used in molecular biology?
What is the function of CDK-2 in the cell cycle?
What information does a Ramachandran plot provide about protein structure?
What is the role of DNA polymerase II in lagging-strand synthesis?
List the key differences between Bacteria and Archaebacteria.
Arrange the following enzymes in the correct order of action during DNA replication: DNA helicase, DNA gyrase, DNA primase, DNA polymerase III, DNA polymerase I, DNA ligase
What is Human Papillomavirus (HPV), and which diseases is it commonly associated with?
Outline the major criteria used in animal classification.
Compare the symmetry of Annelida and Platyhelminthes.
Arrange the following eras in correct geological sequence: Archeozoic, Proterozoic, Phanerozoic
A hand pump A fills a tank in 45 minutes and pump B fills it in 120 minutes. How much time will both pumps take together to fill the tank?
The cube of 0.99 is closest to which of the following values?
CSIR NET Cut Off Marks 2025 indicate the minimum percentage candidates must score to qualify for different categories and subjects. These cut-offs are released separately for Junior Research Fellowship (JRF), Assistant Professor eligibility, and PhD admission.
The cut-off marks vary based on subject-wise difficulty level, number of test-takers, and category-wise reservations. Candidates should check the official cut-off list carefully to understand their qualification status for different categories.
| Subject | UR (%) | EWS (%) | OBC (%) | SC (%) | ST (%) | PwD (%) |
| Chemical Science | 50.75 | 44.50 | 43.75 | 33.25 | 28.00 | 25.50 |
| Earth Science | 61.29 | 53.97 | 53.13 | 44.99 | 43.38 | 26.70 |
| Life Science | 51.50 | 44.00 | 43.75 | 37.25 | 35.75 | 25.00 |
| Mathematical Science | 53.375 | 46.00 | 43.375 | 35.375 | 30.75 | 25.125 |
| Physical Science | 51.188 | 42.375 | 43.375 | 31.625 | 29.188 | 25.125 |
| Subject | UR (%) | EWS (%) | OBC (%) | SC (%) | ST (%) | PwD (%) |
| Chemical Science | 45.675 | 40.05 | 39.375 | 29.925 | 25.200 | 25.000 |
| Earth Science | 55.161 | 48.573 | 47.817 | 40.491 | 39.042 | 25.000 |
| Life Science | 46.350 | 39.60 | 39.375 | 33.525 | 32.175 | 25.000 |
| Mathematical Science | 48.038 | 41.40 | 39.038 | 31.838 | 27.675 | 25.000 |
| Physical Science | 46.069 | 38.1375 | 39.038 | 28.463 | 26.269 | 25.000 |
| Subject | UR (%) | EWS (%) | OBC (%) | SC (%) | ST (%) | PwD (%) |
| Chemical Sciences | 36.750 | 33.00 | 33.00 | 25.00 | 25.00 | 25.00 |
| Earth Sciences | 45.310 | 34.880 | 37.40 | 31.190 | 29.170 | 25.00 |
| Life Sciences | 38.25 | 33.00 | 33.00 | 27.50 | 25.75 | 25.00 |
| Mathematical Sciences | 38.375 | 33.00 | 33.00 | 26.00 | 25.00 | 25.00 |
| Physical Sciences | 36.50 | 33.00 | 33.00 | 25.00 | 25.00 | 25.00 |
CSIR NET Question Papers are an essential preparation resource for candidates aiming to qualify for the exam. By practising previous years’ question papers, aspirants can understand the exam pattern, question difficulty level, and topic-wise weightage across different subjects. Solving CSIR NET question papers also helps improve time management, accuracy, and problem-solving skills.
Regular practice of CSIR NET question papers familiarises candidates with frequently asked concepts and reduces exam-day stress. Analysing these papers allows candidates to identify weak areas and refine their preparation strategy for better performance in the CSIR NET exam
© 2026 Nuvora Education Private Limited. All rights reserved.
