
CSIR NET December 2025 Mathematical Science Exam Analysis, conducted on December 18, 2025, from 3 PM to 6 PM, is presented here. The analysis covers the exam's difficulty level, expected good scores, and a review of the question paper. Successfully qualifying for this exam enables candidates to pursue PhD programs, Assistant Professor positions, or Junior Research Fellowships.
CSIR NET December 2025 Mathematical Science Exam Analysis for December 2025 was held on December 18, 2025, between 3 PM and 6 PM. Based on student feedback, the exam's difficulty level was categorized as easy to moderate overall. Part A was considered the easiest section, while Part C was reported as the most challenging.
Below is a detailed breakdown of the CSIR NET Mathematical Sciences December 2025 exam.
| CSIR NET Mathematical Sciences December Exam Analysis 2025 | ||
|---|---|---|
| Parts | Total no of questions | Maximum Questions to Attempt |
| Part A | 20 | 15 |
| Part B | 40 | 25 |
| Part C | 60 | 20 |
As per student feedback and faculty analysis, the CSIR NET December 2025 Mathematical Sciences paper was moderate to difficult overall. Part A (General Aptitude) was easy-moderate. Part B featured moderate questions on real analysis and linear algebra . Part C proved lengthy with complex differential equations and topology. Here is the approximate difficulty level of the paper as per the students’ reactions.
| CSIR NET December 2025 Mathematical Sciences Exam Analysis Difficulty Level | |
| Section | Difficulty |
| Part A | Easy-Moderate |
| Part B | Moderate |
| Part C | Moderate-Difficult |
| Overall | Moderate |
As per student feedback and faculty analysis, Part A (General Aptitude) was easy-moderate with 13-15 good attempts. Part B featured moderate questions on real analysis and linear algebra (28-32 attempts). Part C proved lengthy with complex differential equations and topology, yielding 47-52 good attempts. Here is the approximate analysis-
| CSIR NET December 2025 Mathematical Sciences Exam Analysis Good Attempts | |
| Section | Good Attempts |
| Part A | 13-15 |
| Part B | 28-32 |
| Part C | 47-52 |
| Overall | 89-102 |
Candidates who appeared for the CSIR NET December 2025 Mathematical Science exam can assess their overall performance using the data provided above. This analysis also helps aspirants evaluate their chances of qualifying for the eligibility test. Here is the topic-wise distribution of the exam paper for the candidates based on the students’ feedback.
| CSIR NET December 2025 Mathematical Sciences Exam Analysis | |
| Topic | Key Areas of Questions |
| Ring Theory | Irreducibility in polynomials of two variables; limited testing methods |
| Complex Analysis | Contour integration of tan(z) dz (poles, residues); 1/(z sin z) via Laurent series; Schwarz Lemma inequalities |
| Group Theory | Subgroups count (Q8 vs S3 counterexamples); groups with exact n subgroups |
| ODE | Wronskian matrix at t=0; Abel's formula with boundary conditions y(0)=3, y'(0)=0 |
| Real Analysis | e^{x^2} Riemann integrability; set A={1+(-1)^n n/(n+1)} bounds/inf-sup |
| Linear Algebra | 3x3 complex matrix eigenvalues (1,i,-i); trace equality implying same char poly |
| Integral Equation | Degenerate kernel (1); IVP solution y(π)+y'(π)=3/2(e^π + e^{-π}) |
| Multivariable Calculus | Limit/partial derivatives of (ax+by)^2/(ax^2+by^2) at (0,0) non-existent |
The 'Good score' refers to the minimum marks candidates need to achieve to qualify for the exam. These scores are estimated based on trends from previous years and the difficulty level of the current exam.
Based on previous year trends and the analysis of the December 2025 exam, the category-wise expected good scores for the CSIR NET December 2025 Mathematical Science Exam Analysis are provided below.
| CSIR NET Mathematical Sciences December 2025 Exam: Expected Good Score | |||
|---|---|---|---|
| Category | Expected Good Score for JRF | Expected Good Score for Assistant Professor | Expected Good Score for PhD |
| UR | 50-55 | 45-50 | 38-42 |
| EWS | 45-47 | 40-42 | 32-35 |
| OBC | 43-45 | 39-42 | 32-35 |
| SC | 35-38 | 31-34 | 25-28 |
| ST | 30-33 | 27-30 | 25-30 |
| PwD | 25-30 | 25-30 | 25-30 |