JEE exam pattern & marking: JEE Main & JEE Advanced

JEE Main Paper 1 is a 3-hour, 75-question CBT carrying 300 marks across Physics, Chemistry and Maths, with +4 for correct and −1 for wrong answers and NTA percentile normalisation across shifts. JEE Advanced is two compulsory 3-hour papers with a variable, year-set marking scheme. This page covers the section structure, marking, and how raw marks become a rank for both stages.

JEE Main Paper 1 (B.E./B.Tech) at a glance

All 5 numerical questions per subject are now compulsory (no optional set), and numericals carry the same +4 / −1 as the MCQs. For the full Class 12 eligibility rules that gate this paper, see the eligibility page.

Section-by-section breakdown: Physics, Chemistry, Maths

Each subject in JEE Main 2027 carries 100 marks across 25 questions, but the way those marks land is very different by subject. Treating all three as one undivided paper costs candidates a lot of marks every year.

• Physics (25 Qs, 100 marks): past papers have leaned on Mechanics, Electrostatics and Current Electricity, Magnetism, Modern Physics and Optics, with steady representation from Heat and Thermodynamics. Questions are typically formula-application or two-step-derivation - long multi-concept chains are rarer than in JEE Advanced. The 5 numericals here are usually clean numbers (integers or one-decimal) so a careful candidate can convert most of them.
• Chemistry (25 Qs, 100 marks): broadly split across Physical, Organic and Inorganic, with Inorganic historically the most NCERT-bound section. Expect direct recall and reaction-prediction in Inorganic, mechanism and product-identification in Organic, and concept-plus-calculation in Physical (mole concept, equilibrium, thermodynamics, electrochemistry, chemical kinetics). Chemistry is the highest scoring-per-minute subject for most candidates - finishing it inside ~45 minutes leaves headroom for Maths.
• Mathematics (25 Qs, 100 marks): Calculus (differential, integral, differential equations) and Coordinate Geometry tend to dominate by mark share, with Algebra (quadratics, sequences, complex numbers, binomial, permutations and combinations, probability), Vectors and 3D, and Trigonometry filling out the rest. Maths is the most time-hungry section per question; numericals here can involve genuine multi-step computation.

Topic weights are indicative trends from past papers, not a syllabus contract - NTA can and does shift emphasis year to year. The takeaway is allocation, not prediction: under-preparing any of the high-frequency areas above puts a disproportionate hole in your 300-mark total.

Ready to test where you stand? Take a free JEE Main mock and see your indicative rank in 30 minutes.

How do numerical questions in JEE Main work?

The numerical (integer-type) section in JEE Main has gone through three phases. Earlier it sat outside the main MCQ set with no negative marking, then it became a 10-question pool of which 5 had to be attempted, and from the 2024 cycle onwards all 5 numericals per subject are compulsory and carry the standard +4 for a correct answer and −1 for an incorrect one. The optional pool is gone.

The scoring implication is concrete: a guess on a numerical now costs the same as a guess on an MCQ, but without the four-option scaffolding to eliminate. Numericals should be attempted only when you can actually compute the answer or bound it tightly. Skipping a numerical you cannot solve is a +1 swing versus guessing (0 instead of −1). The compensating upside is that the answer space is usually a small integer or a value rounded to two decimal places, so partial reasoning plus a sanity check on units can rescue questions where you have the method but not the arithmetic.

Session 1 vs Session 2 and NTA percentile normalisation

JEE Main is held in two sessions - Session 1 in January and Session 2 in April - and a candidate can sit either or both. If you appear in both, NTA takes the better of the two NTA scores (not raw marks) for ranking. The two sessions are not the same test; they are run across multiple shifts on multiple days, with a different question paper in each shift.

Because shifts differ in difficulty, NTA does not rank on raw marks. Each shift is scaled to a percentile inside that shift - the highest raw scorer in a shift gets a 100 NTA percentile in that shift, with everyone else scaled relative to them - and then a composite NTA score is built across shifts. Two consequences matter for prep:

• Your absolute mark in a hard shift is worth more than the same mark in an easier shift; you cannot self-grade against a friend in another shift on raw marks.
• Tie-breaking goes by subject-wise NTA scores (Maths, then Physics, then Chemistry) and finally by age, so a balanced subject profile gives you a small but real edge over a lopsided one at the same total.

The practical strategy: treat Session 1 as a real attempt, not a rehearsal. A strong Session 1 percentile takes the pressure off Session 2 and lets you peak for JEE Advanced preparation between April and late May.

JEE Advanced: two compulsory papers

JEE Advanced paper structure: a deeper look

JEE Advanced is conducted by a rotating zonal IIT - IIT Bombay, Delhi, Guwahati, Kanpur, Kharagpur, Madras and Roorkee take turns hosting - and each host sets its own paper on the IIT-run CBT platform, not on the NTA system. That is why the pattern shifts: the framework (two papers of 3 hours each, all three subjects, attempt both) stays constant, but section composition, marking and partial-credit rules are re-decided every year.

Across the last several years, both papers have typically combined a mix of the following question types, in proportions that vary year to year:

• Single-correct MCQ: standard four-option questions with full negative marking; the most predictable section and usually the place to bank baseline marks.
• Multiple-correct (MSQ): one or more of four options can be correct. Partial credit is offered in some years for marking some but not all correct answers without any wrong selection, with a heavy penalty if any wrong option is marked. The exact partial-credit scheme changes each year - read the instructions on the paper itself.
• Numerical / integer: answer keyed in directly. Most years carry no negative marking here, which makes this section the highest expected-value-per-attempt for a well-prepared candidate.
• Match-the-column / Match the List: two columns of entries with multiple valid mappings between them; usually a small set of questions but worth 3 marks per question with full negative marking on a wrong choice.
• Paragraph / comprehension: a short physics or chemistry context followed by two linked questions. Rewards candidates who can read carefully under time pressure.

Partial marking is the defining feature. Unlike JEE Main where a question is either +4 or −1 or 0, JEE Advanced can credit you partially on MSQs and match-the-list - sometimes +1 per correct option marked, sometimes only if all correct options are marked. Reading the first two pages of the question paper at the start of each paper is not optional - the marking scheme is reset every year and the cost of guessing wrong about the scheme can be 4-6 marks per question.

How should you pace JEE Main and decide when to skip?

For JEE Main, 75 questions in 180 minutes gives an average budget of 2 minutes 24 seconds per question, but that average is misleading. A workable pacing plan for most candidates looks like a short first pass at 60-75 seconds per question across the easier MCQs in each subject - call it a sweep - followed by a second pass on the marked-for-review questions in the time that remains. The aim of the first pass is to lock in the marks you can already see; the aim of the second pass is to convert two or three borderline questions, not all of them.

The skip rule under +4 / −1 is mathematical. If your probability of getting a random four-option MCQ right by guessing is 25%, the expected value of a pure guess is (0.25 x 4) + (0.75 x −1) = +0.25 - non-negative, but small. The moment you can confidently eliminate even one option, expected value jumps to +1.33; eliminating two takes it to +2.5. The practical rule: skip if you cannot eliminate anything; attempt if you have eliminated at least two options. On numericals, where there are no options to eliminate, skip unless you can compute or tightly bound the answer.

For JEE Advanced, time per question is more uneven by design - a single paragraph question can swallow eight minutes and still be worth attempting. The standard advice is to scan the whole paper in the first ten minutes, mark the questions you recognise as solvable, do those first across all three subjects, and only then come back to the longer multi-step problems.

Ready to test where you stand? Take a free JEE Main mock and see your indicative rank in 30 minutes.

How does NTA convert raw marks into a JEE rank?

JEE Main does not use raw marks directly: scores across shifts and sessions are converted to an NTA percentile, and the better of your two sessions is taken. The All-India Rank from that drives NIT / IIIT / GFTI seats via JoSAA rank allocation; IIT seats come from your JEE Advanced rank. See the cutoffs & ranks page.

Ready to test where you stand? Take a free JEE Main mock and see your indicative rank in 30 minutes.

What this means for prep

• Balance all three subjects. A weak subject drags your percentile down disproportionately, since the rank is built on the combined score.
• Respect negative marking. In JEE Main, blind guessing at −1 erodes a good score - attempt only when you can eliminate or solve.
• Train two formats. A predictable JEE Main and an unpredictable JEE Advanced demand different mock habits and pacing - see the Main and Advanced differences for the full comparison.