If you are doing an M.Sc. in Chemistry, or you finished one recently, there is one exam that decides whether a funded PhD or a lecturer’s job is within reach: CSIR NET Chemical Sciences. One three-hour paper can give you a Junior Research Fellowship (JRF), eligibility for Assistant Professor posts, and eligibility for PhD admission. Very few exams in India open that many doors at once.

Chandu Biology Classes has been coaching CSIR NET aspirants for years, and our Life Sciences batches are well known. We are now opening a full CSIR NET Chemical Sciences programme in two formats: a classroom programme at our Hyderabad centre and a live online programme for students anywhere in India. Chemistry is taught by chemistry teachers, with its own material, its own test series and its own doubt support. It is not a Life Sciences course with the subject name swapped.

This page is long on purpose. Before you pay anyone for coaching, you should know exactly what the exam is, what the syllabus contains, what the cutoffs have looked like, and what a realistic preparation plan looks like. Read it fully, and if something is missing, call us on +91 9063264052 and ask.

CSIR NET Chemical Sciences at a glance

The December 2026 cycle, right now

As per the NTA notice released on 7 October 2026, applications for the Joint CSIR-UGC NET December 2026 cycle are open until 5 November 2026 (11:50 PM). A late window runs from 6 to 9 November with an extra fee of ₹500, and the correction window is 10 to 12 November. The exams are scheduled for 19, 22 and 27 December 2026, in two shifts (9 AM to 12 noon and 3 PM to 6 PM) on each date. Always confirm your own date and shift on the official website, csirnet.nta.ac.in, because the shift for each subject is printed on the admit card.

If you are eligible, apply now even if you feel half-ready. A real attempt teaches you more about the paper than another month of reading.

What aspirants actually ask about this exam

Over the years, the same questions come up from M.Sc. students again and again. Here are the short answers. The long ones are further down the page.

• Is it very hard? The syllabus is wide and Part C punishes careless guessing, but the qualifying cutoff for an unreserved JRF candidate in June 2025 was about 50% of the maximum marks. That is achievable with disciplined preparation, especially because you are allowed to skip many questions.
• Do I have to know everything? No. In Part C you attempt only 25 of 60 questions. A student who is strong in Physical and Organic Chemistry can qualify without being an expert in every Inorganic topic.
• Which branch is the most scoring? Physical Chemistry is often the most rewarding for students who practise numericals, because answers are exact. Organic rewards mechanism thinking and spectroscopy practice. Inorganic is a mix of memory, symmetry and electron counting.
• How long does preparation take? Most serious students need six to eight months of regular work. If your M.Sc. fundamentals are strong, a focused revision and test-practice plan can work in less.
• Can I prepare while still in my M.Sc.? Yes. Final-year M.Sc. students can apply, and many of our students start in the second year so the syllabus overlaps with college.
• Coaching or self-study? Self-study is always required. Coaching saves time, gives you a structure and shows you how the paper is actually set. We explain how we help further below.

Exam pattern and marking scheme

The paper has three parts. Every question is multiple choice with four options and one correct answer.

Three things about this pattern change how you should prepare.

1. Part C is half the paper. Twenty-five questions at four marks each add up to 100 of the 200 marks. Students who finish the syllabus only at Part B level, and start application-style practice in the last month, usually find Part C overwhelming. We start Part C style problems early in our course.

2. The negative marking is a quarter of the marks, and that gives you a simple rule. In Parts A and B you gain 2 marks for a correct answer and lose 0.5 for a wrong one. In Part C you gain 4 and lose 1. In both cases the break-even point is a 20% chance of being right. If you can honestly say you are more than 20% sure of an answer, attempting it improves your expected score. If you can eliminate two of the four options, you are at 50%, and you should attempt. If you have no idea, leave it. This is why strategy sessions are part of our course, not an afterthought.

3. You choose your battles. You see 120 questions and answer 75. Part A gives you 5 questions of slack, Part B gives you 5, and Part C gives you 35. That freedom is the biggest advantage the exam gives you, and most students use it badly because they have never practised choosing quickly. Mock tests under timed conditions are the only way to build that instinct.

Who can apply: eligibility, age and fee

Educational qualification. You need an M.Sc. or an equivalent degree, or an integrated BS-MS, a four-year BS, a B.E./B.Tech, B.Pharm or MBBS, with the minimum marks below. Students in the final year of their master’s programme, or those who have appeared for the final exam and are awaiting the result, can apply, subject to the conditions in the information bulletin.

• General and General-EWS: at least 55% marks
• OBC (NCL), SC, ST, PwD and third gender: at least 50% marks

Age limit. For the JRF, the upper age limit is 30 years on the reference date given in the bulletin, with a relaxation of up to 5 years for OBC (NCL), SC, ST, PwD, third gender and women candidates. There is no upper age limit for Assistant Professor eligibility or for PhD admission eligibility.

Application fee. In the June 2026 cycle the fee was ₹1,150 for General, ₹600 for General-EWS and OBC (NCL), and ₹325 for SC, ST and third gender candidates. Check the December bulletin for the exact figures, since the fee can be revised.

Number of attempts. There is no limit. Many people qualify on the second or third attempt, and the failed attempts are not held against you.

What you get if you qualify

CSIR NET Chemical Sciences results are issued in three categories:

1. Category 1: JRF, along with Assistant Professor eligibility
2. Category 2: Assistant Professor eligibility, along with PhD admission eligibility
3. Category 3: PhD admission eligibility only

Ranks are first awarded to JRF-qualified candidates on the basis of the merit list, and these candidates are then distributed between the CSIR and UGC fellowship schemes. A minimum benchmark applies to everyone: 33% overall for General, EWS and OBC candidates, and 25% for SC, ST and PwD candidates.

The JRF stipend is currently ₹37,000 per month for the first two years and ₹42,000 per month as Senior Research Fellow from the third year, plus house rent allowance depending on the city. These are the figures in the latest notices we have seen, so please verify them against the current notification before making financial plans.

Where JRFs go. Qualified candidates take up PhD positions at CSIR laboratories such as CSIR-IICT in Hyderabad, CSIR-NCL in Pune, CSIR-CSMCRI in Bhavnagar, CSIR-CECRI in Karaikudi and CSIR-NIIST in Thiruvananthapuram, as well as at IISc, IITs, IISERs, central universities and other recognised institutions. Assistant Professor eligibility is the basic requirement for many college and university teaching jobs, and the qualification is also noticed by research-oriented employers. One practical note: a JRF award is time-bound, so you need to secure a host institution and a guide within the validity period stated on your award letter.

Cutoff: what the numbers have actually been

The most recent full cutoff table published by CSIR-HRDG at the time of writing is for the June 2025 cycle (exam held on 28 July 2025). For Chemical Sciences, the minimum percentage cutoffs were:

A few honest observations about these numbers:

• The June 2025 cutoffs for Chemical Sciences came down across categories compared with the previous cycle. Cutoffs move with the difficulty of the paper and the pool of candidates, so do not treat last cycle’s figure as a promise about the next one.
• A cutoff near 50% for the JRF looks gentle, but remember where the marks come from. If you attempt 25 Part C questions with negative marking, a few wrong answers can wipe out a lot of marks. Strategy matters as much as knowledge.
• Do not plan to just scrape past the Category 2 cutoff. Aim for a margin of at least 10 marks above the JRF line in your mock tests before you feel safe.

The complete syllabus for CSIR NET Chemical Sciences

The official syllabus has Part A (common to all subjects) and the Part B and C syllabus, which is organised into Inorganic, Physical and Organic Chemistry and a short Interdisciplinary block. Parts B and C use the same syllabus. Part B tests the concepts directly, and Part C tests whether you can apply them to a new situation. The syllabus below follows the structure published by NTA. Please download the latest PDF from csirnet.nta.ac.in to confirm the wording for your cycle.

Part A: General aptitude (common to all subjects)

• General science: basic scientific understanding and the working of everyday science
• Quantitative reasoning and analysis: arithmetic, ratio and proportion, percentages, time and work, simple and compound interest, permutations and combinations, geometry, number series, data interpretation from tables, bar charts, line graphs and pie charts
• Research aptitude: scientific method, research ethics, interpreting experimental data, reasoning about hypotheses, graphs and conclusions

Part B and Part C: Physical Chemistry

1. Basic principles of quantum mechanics. Postulates and operator algebra. Exactly solvable systems: particle in a box, harmonic oscillator, hydrogen atom, including the shapes of atomic orbitals. Orbital and spin angular momenta. Tunnelling.
2. Approximate methods of quantum mechanics. Variational principle. Perturbation theory up to second order in energy. Applications.
3. Atomic structure and spectroscopy. Term symbols. Many-electron systems and the antisymmetry principle.
4. Chemical bonding in diatomics. Elementary concepts of MO and VB theories. Hückel theory for conjugated pi-electron systems.
5. Chemical applications of group theory. Symmetry elements, point groups, character tables and selection rules.
6. Molecular spectroscopy. Rotational and vibrational spectra of diatomic molecules. Electronic spectra. IR and Raman activities and their selection rules. Basic principles of magnetic resonance.
7. Chemical thermodynamics. Laws, state and path functions and their applications. Thermodynamic description of various processes. Maxwell’s relations. Spontaneity and equilibria. Temperature and pressure dependence of thermodynamic quantities. Le Chatelier principle. Elementary description of phase transitions. Phase equilibria and the phase rule. Thermodynamics of ideal and non-ideal gases and of solutions.
8. Statistical thermodynamics. Boltzmann distribution. Kinetic theory of gases. Partition functions and their relation to thermodynamic quantities, with calculations for model systems.
9. Electrochemistry. Nernst equation, redox systems and electrochemical cells. Debye-Hückel theory. Electrolytic conductance and Kohlrausch’s law. Ionic equilibria. Conductometric and potentiometric titrations.
10. Chemical kinetics. Empirical rate laws and temperature dependence. Complex reactions. Steady-state approximation. Determination of reaction mechanisms. Collision and transition-state theories of rate constants. Unimolecular reactions. Enzyme kinetics. Salt effects. Homogeneous catalysis. Photochemical reactions.
11. Colloids and surface chemistry. Adsorption isotherms, surface tension, micelles, colloids and the electrical double layer.
12. Solids. Crystal structures. Bragg’s law and its applications. Band structure of solids.
13. Polymer chemistry. Molar masses and the kinetics of polymerisation.
14. Data analysis. Mean and standard deviation, absolute and relative errors, linear regression, covariance and correlation coefficient.

Part B and Part C: Inorganic Chemistry

1. Chemical periodicity.
2. Structure and bonding in homo- and heteronuclear molecules, including shapes of molecules (VSEPR theory).
3. Concepts of acids and bases. The hard-soft acid-base concept. Non-aqueous solvents.
4. Main group elements and their compounds. Allotropy, synthesis, structure and bonding, and the industrial importance of the compounds.
5. Transition elements and coordination compounds. Bonding theories, spectral and magnetic properties, reaction mechanisms.
6. Inner transition elements. Spectral and magnetic properties, redox chemistry, analytical applications.
7. Organometallic compounds. Synthesis, bonding and structure, and reactivity. Organometallics in homogeneous catalysis.
8. Cages and metal clusters.
9. Analytical chemistry. Separation techniques. Spectroscopic, electroanalytical and thermoanalytical methods.
10. Bioinorganic chemistry. Photosynthesis, respiration, transport and storage of oxygen, electron transfer, nitrogen fixation and metalloenzymes.
11. Characterisation of inorganic compounds by IR, Raman, NMR, EPR, Mössbauer, UV-visible, NQR, mass spectrometry, electron spectroscopy and microscopic techniques.
12. Nuclear chemistry. Nuclear reactions, fission and fusion, radioanalytical techniques and activation analysis.

Part B and Part C: Organic Chemistry

1. IUPAC nomenclature of organic compounds, including regio- and stereochemistry.
2. Principles of stereochemistry. Configurational and conformational isomerism in acyclic and cyclic compounds. Stereogenicity, stereoselectivity, enantioselectivity, diastereoselectivity and asymmetric induction.
3. Aromaticity. Benzenoid and non-benzenoid compounds, their generation and reactions.
4. Organic reactive intermediates. Carbocations, carbanions, carbenes, nitrenes, arynes and free radicals.
5. Reaction mechanisms. Addition, elimination and substitution reactions with electrophilic, nucleophilic or radical species. Determination of reaction pathways.
6. Named reactions and rearrangements and their applications in synthesis.
7. Organic transformations and reagents. Functional group interconversion, including oxidation and reduction. Common catalysts and reagents (organic, inorganic, organometallic and enzymatic). Chemo-, regio- and stereoselective transformations.
8. Concepts in organic synthesis. Retrosynthesis, disconnection, synthons, linear and convergent synthesis, umpolung and protecting groups.
9. Asymmetric synthesis. Chiral auxiliaries, substrate-, reagent- and catalyst-controlled reactions. Determination of enantiomeric and diastereomeric excess. Enantio-discrimination. Optical and kinetic resolution.
10. Pericyclic reactions. Electrocyclic, cycloaddition and sigmatropic reactions, and other useful organic reactions and reagents.
11. Heterocyclic compounds. Synthesis and reactivity of common heterocycles containing one or two heteroatoms (O, N, S).
12. Chemistry of natural products. Carbohydrates, proteins and peptides, fatty acids, nucleic acids, terpenes, steroids and alkaloids. Biogenesis of terpenoids and alkaloids.
13. Structure determination of organic compounds by IR, UV-visible, 1H and 13C NMR and mass spectroscopy.

Part B and Part C: Interdisciplinary topics

1. Chemistry in nanoscience and technology
2. Catalysis and green chemistry
3. Medicinal chemistry
4. Supramolecular chemistry
5. Environmental chemistry

How the three branches behave in the paper

The syllabus tells you what is included. It does not tell you how the questions feel. Here is how we explain it to students in the first week.

Physical Chemistry is where exactness pays. Questions in quantum mechanics, thermodynamics, kinetics and statistical mechanics usually have one clean numerical or symbolic answer, and if your method is right your answer is right. The risk is time: a two-step integral or a long expression can eat three minutes. Students who practise short-cut derivations and standard results from memory do well here. Group theory and spectroscopy belong to this block, and they reward practice more than talent, because the rules are finite.

Organic Chemistry is about mechanism. A question may give you a starting material, a reagent set and ask for the major product, or it may give you data and ask for the structure. Part C tends to combine two ideas, for example a stereochemical outcome together with a rearrangement, or an NMR-and-IR puzzle with a named reaction. You cannot memorise your way through these, but if you have practised drawing arrow-pushing mechanisms for a few hundred reactions, you will recognise the patterns.

Inorganic Chemistry mixes memory and logic. Coordination chemistry (crystal field theory, spectra, magnetism, reaction mechanisms), organometallics (electron counting, catalytic cycles) and main group chemistry make up much of the material. Spectroscopic characterisation appears here as well. Students who treat it as pure memorisation lose marks on the application questions in Part C.

Interdisciplinary topics are a small block, but they are the easiest place to pick up marks because the questions are usually conceptual. Do not ignore green chemistry, catalysis and nanomaterials.

Where students commonly lose marks

• They start Part C practice only in the last month.
• They skip Part A completely. It is 30 marks out of 200, and the quantitative reasoning is not hard if you have practised.
• They read five books and never do a full mock under timed conditions.
• They avoid group theory and spectroscopy because they look hard, then discover that those are exactly the topics with the most predictable questions.
• They are not used to the on-screen format and lose time scrolling, flagging and rewriting calculations.

Our CSIR NET Chemical Sciences programme at Chandu Biology Classes

Our approach is simple: concept first, then application, then exam conditions. The course is divided into three phases.

Phase 1: Foundation. We cover the full syllabus unit by unit across Physical, Inorganic and Organic Chemistry and the interdisciplinary topics. The goal is not speed. The goal is that you can explain a concept to a friend without opening the book. Short chapter-wise tests run alongside the lectures so gaps show up early.

Phase 2: Application. Here we move to Part C style problem solving. You work on questions that combine ideas from two or three units, interpret spectral data, and solve multi-step mechanism and numerical problems. We also hold dedicated Part A sessions on quantitative reasoning, data interpretation and research aptitude.

Phase 3: Revision and simulation. You go through repeated full-syllabus revision, full-length mock tests in the real A, B and C structure with the real negative marking, and a walkthrough of previous years’ papers. We teach you how to decide in the first twenty minutes which Part C questions to attempt.

What every student gets

• Structured study material for all units, written around the CSIR NET pattern
• Unit-wise tests, monthly comprehensive tests and full-length CBT mock exams
• Previous years’ question paper discussion, topic by topic
• Doubt-clearing sessions and access to faculty between classes
• Guidance on attempt strategy for Part C and on handling negative marking
• Career guidance after you qualify, including how to approach PhD positions and teaching recruitment

Two ways to join

Classroom programme, Hyderabad. Regular classes at our centre in Narayanguda, with direct access to faculty, in-person doubt clearing and the discipline of a fixed schedule. This suits students who are in or near Hyderabad and learn better in a room with other serious aspirants.

Online programme. Live interactive classes, recordings for revision, digital notes and an online test series. This suits students in other states, working candidates, and students in smaller towns who do not have access to specialist chemistry coaching. Online students follow the same syllabus plan and take the same tests as the classroom batch.

For the current batch dates, fee structure and a demo class, call +91 9063264052. We prefer to speak to you before you enrol so that you pick the right programme.

A realistic plan: which cycle should you target?

If you want to attempt December 2026. The exam is about ten weeks away. This works if you have studied the core chemistry in your M.Sc. and mainly need revision, Part A practice and test-taking skills. Do not try to learn everything from scratch. Revise the high-return topics (quantum basics, thermodynamics, kinetics, group theory, spectroscopy, coordination chemistry, mechanisms), solve previous years’ papers, and take as many timed mocks as you can. Treat it as a serious attempt and a rehearsal for the next cycle.

If you are targeting June 2027. You have about seven to eight months, which is the comfortable window. A sensible split looks like this:

For self-study alongside classes, we suggest four to six hours a day for full-time aspirants and two to three for students who are still attending college. Consistency beats marathon days.

Books: use them as reference, not as a reading list

You do not need ten books per branch. Here are the standard texts that most aspirants use, and you should pick one for each area rather than reading all of them.

• Physical Chemistry: Atkins’ Physical Chemistry or Engel and Reid; McQuarrie or Prasad for quantum chemistry; Cotton for group theory
• Organic Chemistry: Clayden, Greeves and Warren; Carey and Sundberg for advanced reaction mechanism; Pavia or Silverstein for spectroscopy
• Inorganic Chemistry: Shriver and Atkins; J. D. Lee for a simpler start; Crabtree for organometallics

Our class notes are designed to cover what the exam actually asks, so that you use the books to deepen difficult topics and not to cover the syllabus for the first time.

Who this course is for, and who it is not for

This programme is for final-year and completed M.Sc. Chemistry students, for graduates in related fields who meet the eligibility rules, and for repeat aspirants who want a structured plan and regular testing after an earlier attempt. It is also for students who qualified CUET PG or GATE and now want a research or teaching route.

It is not a shortcut. If you are not willing to practise problems daily and sit mock tests, no coaching in the country will qualify you. What we can do is give you the structure, the right questions and honest feedback on where you stand.

Frequently asked questions

Is CSIR NET Chemical Sciences very difficult? It is demanding because the syllabus is broad and the Part C questions test application. At the same time, you attempt only 75 of 120 questions, and the JRF cutoff in June 2025 for unreserved candidates was about 50%. Most students who prepare systematically and practise mock tests can reach that range.

How many months do I need to prepare? Six to eight months of regular study is the comfortable range. With strong M.Sc. fundamentals, a revision-focused plan of two to three months can be enough for a serious attempt, but only if you take timed mock tests.

Which part is the most important? Part C, because it carries 100 of the 200 marks. But Part B decides how safe you are, and Part A is the easiest 30 marks to protect.

Do I have to attempt all branches in Part C? No. You attempt 25 of 60 questions. You should be reasonably comfortable in all three branches, but you can lean on your strongest ones.

Is there negative marking? Yes. 0.5 marks are deducted for each wrong answer in Parts A and B, and 1 mark for each wrong answer in Part C.

Can I use a calculator? No calculator is allowed in the exam hall, so you should practise numerical problems without one, using approximations.

What is the difference between JRF and Assistant Professor eligibility? JRF gives you a fellowship to do a PhD, and it also makes you eligible for Assistant Professor posts. Assistant Professor eligibility alone lets you apply for teaching jobs and PhD admission but without the fellowship.

Can I apply in the final year of my M.Sc.? Yes, if you are in the final year or have appeared for the final exam, you can apply as per the conditions in the information bulletin. You must produce proof of passing within the time the bulletin specifies.

Can students from outside Hyderabad join? Yes. The online programme is designed for students anywhere in India, with live classes, recordings, notes and the same test series.

What if I miss a live class? Online students can watch recordings, and doubts can be raised in the next doubt session.

Should I do the classroom or the online programme? If you live in or near Hyderabad and focus better in person, the classroom programme gives you more structure. If you are elsewhere, working, or need flexible timings, the online programme gives you the same syllabus and tests at your own location. Call us and we will help you decide.

How do I enrol? Call +91 9063264052, or download the Chandu Biology Classes app from the Play Store, search for your course and complete the enrolment. We are happy to arrange a demo class before you pay.

Contact Chandu Biology Classes

Phone: +91 9063264052 Email: chandubiologyc@gmail.com Website: chandubiologyclasses.com App: Chandu Biology Classes on Google Play Classroom centre: Golden Leaf Estates, 3rd Floor, Chitrapuri Colony, Bagh Lingampally, near Mumbai Masala Restaurant, Narayanguda, opposite Metro Pillar No. 1156, Hyderabad, Telangana 500029

Disclaimer: The exam pattern, syllabus, eligibility, dates, fees and cutoff figures on this page are compiled from NTA and CSIR-HRDG notices and other public sources, and were accurate to the best of our knowledge at the time of writing. Exam authorities can change them at any time. Please verify everything on csirnet.nta.ac.in and csirhrdg.res.in before you apply or plan your preparation.