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CSIR NET December 2025 Mathematical Sciences — Part A, B & C solved

The Part A, B & C questions transcribed from this paper, worked out in full — not just the answer key, but why each option holds or fails and which trap it tests.

What this paper asked

98 of 119 questions mapped to a syllabus topic. How this compares across every complete paper →

  • Eigenvalues and Canonical Forms7 · 4 in C
  • Probability7 · 5 in C
  • The Real Line7 · 2 in C
  • Estimation5 · 3 in C
  • Groups5 · 2 in C
  • Partial Differential Equations5 · 2 in C
  • Linear Models and Multivariate5 · 3 in C
  • Limit Theorems and Markov Chains4 · 2 in C
  • Ordinary Differential Equations4 · 2 in C
  • Singularities and Residues4 · 1 in C
  • Topology3 · 2 in C
  • Vector Spaces and Linear Maps3 · 2 in C
  • Calculus of Variations3 · 2 in C
  • Sampling and Design of Experiments3 · 2 in C
  • Inner Product Spaces and Forms3 · 1 in C
  • Numerical Analysis3 · 2 in C
  • Hypothesis Testing3 · 2 in C
  • Linear Integral Equations3 · 2 in C
  • Rings and Fields3 · 3 in C
  • Integration3 · 3 in C
  • Analytic Functions2 · 1 in C
  • Continuity and Differentiation2 · 1 in C
  • Functions of Several Variables2 · 2 in C
  • Sequences and Series of Functions2 · 2 in C
  • Cauchy Theory2 · 2 in C
  • Linear Programming1 · 0 in C
  • Metric Spaces1 · 1 in C
  • Lebesgue Measure and Integration1 · 1 in C
  • Classical Mechanics1 · 1 in C
  • Zeros and Mappings1 · 1 in C
119 questionsPart A: 20Part B: 39Part C: 600 free to read

The paper, part by part

Keep going

Drill these by trap type rather than by paper, sit a full timed paper with the real attempt limits, or work the syllabus topic by topic with curated lectures.