PYQ Deep Dive · Exam Intel · UGC NET 2026
UGC NET Forensic Science PYQ Analysis
Most Repeated Topics (2015–2024)
A data-driven breakdown of 10 years & 18+ exam cycles of NTA UGC NET Forensic Science Paper 2 — mapped to frequency, unit weight, and question type so you study smarter, not harder.
⚠️ Why This Analysis Matters Right Now
The NTA UGC NET Forensic Science exam (Paper 2) has 100 MCQs worth 200 marks in a 3-hour window with zero negative marking. Knowing which topics the NTA has consistently repeated across 18+ exam cycles (June & December, 2015–2024) can be the difference between qualifying and missing the cut. This is not guesswork — it's pattern recognition built from a decade of publicly available question papers.
📋 Exam Pattern at a Glance
Key numbers every UGC NET Forensic Science aspirant must know before starting preparation.
100
MCQs in Paper 2
200
Total Marks (2 marks each)
3 hrs
Combined P1+P2 Duration
10
Syllabus Units (P2)
NIL
Negative Marking
40%
Min. Qualifying (General)
💡 Fast Fact: The UGC NET is conducted by the National Testing Agency (NTA) twice a year — June and December cycles. Paper 1 tests general teaching & research aptitude (50 Qs, 100 marks). Paper 2 is entirely subject-specific. Subject code for Forensic Science is 82. Qualifying marks: General/EWS — 40% aggregate; OBC-NCL/PwD/SC/ST — 35% aggregate.
📊 Topic-Wise Question Frequency (2015–2024)
Relative appearance rate of each major topic cluster across 18+ exam cycles. Based on publicly available PYQ analysis data.
| # | Topic Cluster | Approx. Qs/Paper | Repeat Frequency | Priority |
|---|---|---|---|---|
| 01 | Fingerprints & Impression Evidence Henry system, minutiae, development techniques, AFIS |
12–15 | 94% | 🔴 Must Do |
| 02 | DNA Profiling & Forensic Serology STR, PCR, ABO system, bloodstain analysis, confirmatory tests |
11–14 | 91% | 🔴 Must Do |
| 03 | Forensic Toxicology Poisons, Marsh/Reinsch tests, drugs of abuse, Widmark formula |
10–13 | 88% | 🔴 Must Do |
| 04 | Ballistics & Firearms Internal/external/terminal ballistics, rifling, GSR, explosives |
9–12 | 85% | 🟠 High Priority |
| 05 | Questioned Documents Handwriting, forgery, ESDA, ink dating, alterations |
8–11 | 82% | 🟠 High Priority |
| 06 | Crime Scene Investigation Locard's principle, chain of custody, search patterns, evidence documentation |
8–10 | 78% | 🟠 High Priority |
| 07 | Forensic Chemistry & Instruments GC-MS, HPLC, AAS, SEM-EDX, spectroscopy, chromatography |
7–10 | 75% | 🟠 High Priority |
| 08 | Forensic Pathology & Medicine Postmortem changes, manner of death, wound analysis, medico-legal autopsy |
7–9 | 72% | 🟠 High Priority |
| 09 | Cyber / Digital Forensics IT Act 2000, hash functions, data recovery, mobile forensics, network forensics |
6–8 | 65% | 🟢 Moderate |
| 10 | Forensic Entomology & Botany PMI estimation via insects, blow flies, diatoms, pollen analysis |
3–5 | 50% | 🟢 Good to Do |
* Frequency % = relative appearance rate across 18 exam cycles (Jun/Dec 2015–2024). Compiled from publicly available PYQ analyses. "Qs/Paper" is approximate range based on observed patterns.
📈 Year-Wise Topic Trend Snapshot (2015–2024)
How question emphasis has shifted across major exam years. 🔴 = Heavy focus 🟠 = Moderate ⬤ = Light
| Topic | 2015–16 | 2017–18 | 2019–20 | 2021–22 | 2023–24 | Trend |
|---|---|---|---|---|---|---|
| Fingerprints | H | H | H | H | H | ▲ Stable-High |
| DNA & Serology | M | H | H | H | H | ▲ Rising |
| Toxicology | H | H | H | M | H | → Stable |
| Ballistics | H | H | M | H | H | → Stable |
| Questioned Docs | H | M | H | M | H | → Alternating |
| Crime Scene | M | M | H | H | H | ▲ Rising |
| Instruments (GC-MS etc.) | L | M | H | H | H | ▲ Strong Rise |
| Forensic Pathology | H | H | M | M | M | ▼ Slight Decline |
| Cyber / Digital Forensics | L | L | M | H | H | ▲ Fast Rising |
| Entomology / Botany | L | L | M | L | M | → Occasional |
📌 Key Structural Shifts (Post-2019): Paper 2 has seen a marked increase in Assertion-Reason, Match-the-Column, and Statement-Based questions replacing straightforward recall MCQs. Analytical instruments (GC-MS, HPLC, SEM-EDX) and Cyber Forensics have grown substantially. Direct definition questions are declining; application-level and principle-based questions are rising.
🔎 Unit-Wise Most Repeated Topics — Deep Dive
What the NTA consistently tests from each major unit. Mapped to PYQ frequency from 2015–2024 cycles.
Fingerprints & Impression Evidence
94%
The single most tested topic cluster in UGC NET Forensic Science. Questions span from basic ridge morphology to advanced AFIS-level identification, casting methods, and biometric comparisons. Every exam cycle has had at least 10 questions from this area.
Henry Classification System — primary, secondary & sub-secondary divisions; ridge counts; whorl tracing (I/M/O)
Galton Details / Minutiae — bifurcation, ending ridge, dot, island, spur, crossover, delta, core
Development Techniques — Ninhydrin (amino acids), DFO, cyanoacrylate, VMD, Physical Developer on wet paper, Sudan Black for greasy prints
Latent vs Patent vs Plastic — differences, suitable surfaces, correct reagent selection per surface type
AFIS / NAFIS — working principle, role in criminal identification, limitations of automated systems
Chance Print Comparison — ACE-V methodology, comparison microscope use, court admissibility standards
Impression Evidence — footprints, shoe prints, tyre marks, skid marks; casting with plaster of Paris, dental stone, silicone
Ridge Permanence & Individuality — embryological development, permanence from 3rd fetal month, Galton's contributions
DNA Profiling & Forensic Serology
91%
DNA and Serology questions have risen significantly post-2017, now featuring molecular technique-based Assertion-Reason formats. Confirmatory test identification is an extremely reliable scoring area — questions appear in almost every paper.
DNA Typing Methods — STR (Short Tandem Repeat), RFLP, PCR amplification, mtDNA (maternal inheritance), Y-STR (paternal lineage)
CODIS — Combined DNA Index System; 13 core STR loci (CODIS 13); India's DNA Profiling Bill context
ABO Blood Group System — antigens (A, B, H), antibodies, co-dominance genetics, medico-legal paternity use
Bloodstain Pattern Analysis (BPA) — area of origin, directionality, satellite staining, cast-off pattern, contact vs projected blood
Presumptive Tests — Kastle-Meyer (phenolphthalein + H₂O₂), Benzidine (hazardous, historical), Leucomalachite Green, Luminol (latent blood)
Confirmatory Tests — Takayama crystal (pyridine-haemochromogen), Teichmann crystal (haemin), Precipitin test for species ID
Semen & Saliva Detection — acid phosphatase (AP) test, PSA/p30 confirmatory, Christmas tree stain for sperm heads; saliva by amylase
Hair Microscopy — medulla index (human <0.33), cuticular scale patterns, cortical fusi; human vs animal hair differentiation
Forensic Toxicology
88%
Toxicology questions are consistently difficult and concept-heavy. They often appear in Assertion-Reason and Matching formats. The NTA tests both basic poison classification and specific analytical chemistry of toxicology simultaneously.
Classification of Poisons — corrosive, irritant (local), systemic (neurotic/cardiac/asphyxiants); LD50 and TLV significance
Metallic Poisons — Arsenic: Marsh Test (AsH₃ + Zn + H₂SO₄), Reinsch Test; lead, mercury, thallium, antimony signs & samples
Alcohol Analysis — ethyl alcohol metabolism; BAC via Widmark's formula (C=A/rW); breathalyzer principle; medico-legal BAC limits
Drugs of Abuse — opiates (morphine/heroin/codeine), cannabinoids (THC), cocaine, amphetamines; NDPS Act Schedule I & II
Organic Poisons / Alkaloids — aconitine, strychnine, atropine, colchicine, taxine; botanical source identification
Analytical Techniques — TLC (screening), GC-MS (confirmatory gold standard), HPLC, immunoassay; colour spot tests (Marquis, Duquenois-Levine)
ADME Pharmacokinetics — absorption, distribution, metabolism, excretion; first-pass effect; post-mortem redistribution
Gunshot Residue (GSR) — primer elemental composition (lead, barium, antimony); SEM-EDX analysis; collection timeline
Forensic Ballistics & Firearms
85%
Ballistics questions are highly specific and factual — each subtopic either appears or doesn't. This makes it ideal for targeted, high-yield revision. Definitions, mechanisms, and comparison methodology are most tested.
Internal / External / Terminal Ballistics — definitions, projectile flight physics, yaw and precession, tumbling on impact
Rifling — lands & grooves, twist direction (L/R), class characteristics vs individual characteristics (striations)
Cartridge Components — Boxer vs Berdan primer, propellant types (smokeless/black powder), calibre vs gauge distinction
Range of Firing Estimation — contact wound, near-contact, intermediate, distant; tattooing (stippling) vs fouling (sooting) distinction
Entry vs Exit Wound — abrasion collar, grease ring; bone bevelling direction; "shoring" effect at exit
Bullet Comparison — comparison microscope methodology; breech face marks, firing pin marks, ejector/extractor marks
Explosives — primary vs secondary; detonation chain; common high explosives (RDX, PETN, TNT, TATP); IED classification
Tool Mark Examination — striated marks (parallel lines) vs impressed marks (negative impression); IBIS system
Questioned Documents Examination
82%
QDE is one of the most scoring-friendly units because questions are predominantly definition, technique identification, or instrument-based. Last-minute revision here yields disproportionate marks.
Handwriting Analysis — 12 identifying characteristics (letter formation, pen pressure, slant, spacing); class vs individual characteristics
Forgery Types — traced (direct/transmitted light), freehand simulated, traced-and-filled; cut-and-paste; detection methods
ESDA — Electrostatic Detection Apparatus; recovery of indented writing on underlying sheets; non-destructive
Ink Analysis — chromatographic ink dating; HPLC/TLC of dyes; intersecting lines sequence determination
Paper & Watermarks — dandy roll process; chemical composition; UV fluorescence; security features in currency (RBI notes)
Alterations & Obliterations — chemical, mechanical, thermal methods; detection via UV, IR, VSC (Video Spectral Comparator)
Typewriting & Printing Forensics — character defects, individual characteristics; photocopier drum identification; inkjet vs laser differentiation
Age of Documents — iron-gallo-tannate ink degradation; paper brittleness; radiocarbon dating for historical documents
Crime Scene Investigation & Physical Evidence
78%
Foundational topics for any forensic science paper. Locard's Exchange Principle, chain of custody, and search methods appear with near-certainty in every paper. Physical evidence classification is increasingly tested.
Locard's Exchange Principle — "every contact leaves a trace"; trace evidence transfer; primary/secondary transfer concepts
Chain of Custody — documentation, packaging, labelling; breaking of chain and admissibility implications
Crime Scene Search Patterns — Zone, strip/line, grid, spiral (inward/outward), wheel/ray methods; indoor vs outdoor applicability
Physical Evidence Classification — class vs individual; biological, chemical, physical, digital; transient vs conditional evidence
Forensic Photography — overall/midrange/close-up; oblique lighting; photomicrography; scale photography standards
Trace Evidence — fibres (natural vs synthetic; Becke line under polarised light), glass (refractive index, Hartmann lines), soil, paint (PDQ database)
Legal Framework at Scene — IEA Sec 45 (expert witness), CrPC Sec 293 (report of certain Govt. scientific experts); FIR vs First Report
Forensic Microscopy — comparison microscope, SEM/TEM, polarizing microscope, phase contrast; applications per evidence type
Forensic Chemistry & Analytical Instruments
75%
Instrumentation questions follow a highly predictable pattern: working principle → detector type → forensic application. Master this formula and this unit becomes very reliable. GC-MS is the single most-tested instrument.
GC-MS — Gas Chromatography-Mass Spectrometry; separation + identification of volatiles; drugs, accelerants, GSR analysis
HPLC — High Performance Liquid Chromatography; reversed phase; detector types (UV-Vis, fluorescence, MS); drug/poison analysis
AAS — Atomic Absorption Spectroscopy; hollow cathode lamp; heavy metal (Pb, As, Hg) quantification in biological samples
SEM-EDX — Scanning Electron Microscopy with Energy Dispersive X-ray; GSR elemental analysis; particle morphology
IR Spectroscopy (FTIR) — functional group identification; paint, polymer, drug identification; non-destructive analysis
Chromatography Fundamentals — TLC (Rf value calculation), column, paper; mobile vs stationary phase; partition vs adsorption
Neutron Activation Analysis (NAA) — non-destructive; trace element profile; hair, soil, GSR; nuclear reactor basis
Electrophoresis — isoelectric focusing (IEF), gel electrophoresis; protein/enzyme typing; ABO secretor status confirmation
Cyber & Digital Forensics
65%
Cyber forensics was almost absent before 2018 but now consistently contributes 6–8 questions per paper, driven by India's growing IT crime landscape. IT Act sections and hash function definitions are the most reliable subtopics.
IT Act 2000 & Amendments — Section 43 (unauthorized access), 65 (tampering), 66 (computer-related offences), 66C (identity theft), 72 (breach of confidentiality)
Hash Functions — MD5, SHA-1, SHA-256; purpose (data integrity verification); hash collision concept; use in evidence authentication
Data Recovery — deleted file recovery; slack space; file carving; EnCase, FTK, Autopsy tools; write blocker necessity
Mobile Forensics — SIM card analysis; IMEI; call data records (CDR); extraction methods (logical/physical/chip-off)
Network Forensics — IP address tracing, packet capture, Wireshark; MAC address; log file analysis; metadata extraction
Steganography — hiding data within digital media; LSB (Least Significant Bit) technique; steganalysis methods
Email & Social Media Forensics — header analysis, IP tracing via email headers, digital footprint concept
Cybercrime Types — phishing, ransomware, identity theft, cyber stalking, CSAM; CERT-In role; Adjudicating Officer under IT Act
🅾 Question Type Distribution (Post-2019 Pattern)
How the NTA structures its questions — understanding this shapes how you prepare answers, not just what you prepare.
~35%
Direct MCQ (Recall)
Straightforward factual questions with single correct answer. "Which reagent is used for...?", "NAFIS stands for...?"
~25%
Assertion-Reason (A-R)
Both A and R provided; choose correct relationship. Heavily used in Toxicology and Serology. Tests conceptual depth.
~20%
Match the Column
Match terms to definitions/applications. Common in Instruments, Ballistics, and Legal topics. Multiple items reduce guessing.
~12%
Statement-Based (True/False)
"Which of the following statements is/are correct?" — requires thorough concept clarity across the full statement.
~8%
Sequencing / Arrangement
Arrange steps in correct order. Used for postmortem changes, PCR steps, crime scene processing sequence.
🎯 Pro Strategy for A-R Questions: The NTA uses 4 standard A-R options: (A) Both A and R true, R correctly explains A | (B) Both true, R does NOT explain A | (C) A true, R false | (D) A false, R true. Master the logic: even if both statements are correct, choose (A) only if there is a causal/explanatory relationship. Option (B) catches many students who know the facts but miss the relationship.
🌟 30-Day Smart Revision Strategy (Priority-Based)
Based on the PYQ frequency data above — a week-by-week plan that targets maximum marks in minimum time.
| Phase | Days | Units to Focus | Goal |
|---|---|---|---|
| Phase 1 — Heavy Hitters | Day 1–10 |
|
Lock down 30–40 guaranteed marks. These 3 areas alone contribute ~35–42 questions per paper historically. |
| Phase 2 — High Yield | Day 11–20 |
|
Add another 25–30 marks. QDE is excellent for last-minute scoring — definitions convert to marks quickly. |
| Phase 3 — Rising Stars | Day 21–26 |
|
Capture rising-trend marks. Instruments and Cyber are now near-guaranteed 12–15 questions combined. |
| Phase 4 — Final Polish | Day 27–30 |
|
Identify and patch gaps. Full paper simulation builds speed and confidence. Aim for 80+ marks. |
📚 Recommended Books Mapped to PYQ Frequency
Which books to use for which high-frequency units — avoid studying the wrong resource for the wrong topic.
| Book / Resource | Author | Best For (Units) | Priority |
|---|---|---|---|
Criminalistics: An Introduction to Forensic Science Richard Saferstein |
Saferstein | Units 1–356 Fingerprints, serology, DNA, hair, fibre, paint, glass, firearms, questioned docs | Core Text |
The Essentials of Forensic Medicine & Toxicology K.S. Narayan Reddy |
K.S.N. Reddy | Units 48 Postmortem changes, wound analysis, manner of death, major poisons, alcohol | Core Text |
Forensic Science in Criminal Investigation & Trials B.R. Sharma |
B.R. Sharma | Units 167 India-specific context, legal framework, IEA, Indian court procedure, document examination | Core Text |
UGC NET Paper 2 Forensic Science Topic-wise Notes Various (Exam-specific publishers) |
R.P. Tewari / Anita Y. Wonder | All Units Purpose-built MCQ banks aligned to NTA syllabus — use exclusively in final 3–4 weeks for practice | Practice Only |
NTA UGC NET/JRF Forensic Science Solved PYQs (2004–2024) ForensicMCQ.com |
forensicmcq.com | All Units Official solved papers with detailed explanations — the primary PYQ source for this analysis | Must Use |
🎯 Key Takeaways for UGC NET June 2026
Five evidence-based conclusions from this PYQ analysis — print these and keep them visible.
🔴
Top 3 Units = ~40% of Paper
Fingerprints, DNA/Serology & Toxicology together account for roughly 35–42 questions per 100. Master these before anything else.
📈
Instruments & Cyber Are Rising Fast
GC-MS, HPLC, SEM-EDX and Cyber Forensics (IT Act, hash functions) were minor pre-2018 but now contribute 12–15 combined questions.
❓
Question Format Has Shifted
Simple recall MCQs are declining. Assertion-Reason (25%), Match-the-Column (20%), and multi-statement questions now dominate. Prepare for reasoning, not just memory.
⚡
QDE = Best Last-Minute Unit
Questioned Documents is the most definition-dense, scoring-friendly unit. 8–11 questions/paper, mostly definitional. Cover it 2–3 days before the exam.
📦
No Negative Marking = Attempt Every Question
This is fundamental strategy. With zero negative marking, a blank answer is always worse than an educated guess. On questions where you can eliminate even 1–2 options, guessing is statistically correct. Target 80+ correct answers (160+ marks) for a strong qualifying position, especially for JRF.
🔗 Sources & References
- [1] NTA Official Website — UGC NET Forensic Science Question Papers: https://ugcnet.nta.nic.in
- [2] ForensicMCQ.com — Solved UGC NET/JRF Forensic Science PYQs (2004–2024): forensicmcq.com
- [3] Testbook.com — UGC NET Forensic Science Previous Year Question Papers PDF: testbook.com
- [4] JRFAdda.com — UGC NET Forensic Science Syllabus 2026 & PYQ Analysis: jrfadda.com
- [5] Adda247 — UGC NET Forensic Science Syllabus 2026 with Exam Pattern: adda247.com
- [6] Physics Wallah (PW) — UGC NET Forensic Science Syllabus & PYQs: pw.live
- [7] UGC NET Forensic Science Previous Year Papers (2009–2024): ugcnet.buddingforensicexpert.in
- [8] UGC NET Forensic Science Chapterwise Question Bank (Book) — Google Books: books.google.com
© 2026 Budding Forensic Expert | Educational purposes only. Data sourced from publicly available NTA UGC NET papers. Not affiliated with NTA or UGC.
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