NSEJS Exam Pattern : Marking Scheme and Time Plan

The NSEJS exam pattern is a single two-hour paper of 60 multiple-choice questions carrying 216 marks. It tests Physics, Chemistry and Biology together, and it uses two different question styles with two different marking rules. Knowing how each part is scored matters as much as knowing the syllabus.

This page explains the structure, the marking scheme, what a wrong guess costs, and how to split your time. The details come from IAPT's 2026 student brochure and booklet for the paper on 22 November 2026. Pattern details are usually stable from year to year, but IAPT announces each cycle's rules separately, so confirm them on the official website.

Table of Contents

NSEJS Exam Pattern at a Glance

Points to Know About the Pattern

• The paper is not split by subject: IAPT does not publish separate Physics, Chemistry and Biology sections. Questions from the three sciences appear within the two parts, so you cannot plan one subject at a time inside the paper.

• Mathematics is not a separate section: Some older pages still describe four subjects. Current IAPT material describes three sciences.

• Part B is all or nothing: Some pages online are unclear about partial credit. The brochure says credit is given only when all correct options and no incorrect option are marked.

• Names of the parts vary: You may see Part A and Part B called Section A and Section B, or A-1 and A-2, on other pages. The structure is the same.

Part A: Single-Correct Questions

Part A has 48 multiple-choice questions. Each has four options and exactly one is correct. A correct answer earns 3 marks and an incorrect answer costs 1 mark. Part A carries 144 of the 216 marks, which is two thirds of the paper.

These questions range from direct recall to short calculations and reasoning about a situation. Because a wrong answer is penalised, the decision to attempt a question is part of the skill being tested.

What a guess is worth in Part A

The table below shows the average marks gained per question if you guess among the options that remain after eliminating the ones you know are wrong.

A pure guess averages out to zero, so it is neither a gain nor a loss over many questions, but it adds risk. A guess after removing even one option has a small positive value. This is why informed elimination is worth practising.

Part B: One or More Correct Options

Part B has 12 multiple-choice questions of 6 marks each, worth 72 marks in total. In each question, one or more of the four options can be correct, anywhere from one to all four.

• Full marks only for a perfect answer: You must mark every correct option and no incorrect option.

• No partial credit: Marking three of four correct options earns nothing.

• No negative marking: IAPT's booklet states there is no negative marking in this part. The student brochure does not mention a penalty for Part B.

With four options and any combination possible, there are 15 ways to mark a question (excluding leaving it blank). A blind guess therefore has about a 1 in 15 chance of being right, which is about 0.4 marks on average. Since there is no penalty, an educated attempt can only help, but only careful judgement of each statement will score consistently.

Marking Scheme and Negative Marking

The penalty is stated for incorrect choices only, so unanswered questions carry no deduction. The total is 144 plus 72, which gives the 216 marks printed in the brochure.

Sample Score Calculations

These examples are made up to show how the scheme works. They are not predictions or official figures.

The third case shows how 18 wrong answers cost 18 marks on top of the 54 marks that those questions could have earned. The fourth shows that a flawless Part A alone lands in the range of last year's top scores. Last year's average of the top ten scores was 140.2 out of 216, which is a useful reference when you set targets.

What the Pattern Means for You

• Part A is the base: Two thirds of the marks sit here. A steady, accurate Part A gives you a score that clears the minimum bar even if Part B goes badly.

• Part B can separate close scores: Each question is worth two Part A questions, and it rewards students who understand a concept deeply enough to judge every statement.

• Accuracy beats volume in Part A: Each wrong answer wipes out one third of a right answer's gain. Attempt only when you have narrowed the options.

• Judge every statement in Part B: Treat each option as an independent true or false statement. Do not look for the one best option.

• Balanced preparation matters: Equal emphasis on the three sciences means a weak subject can cost around a third of the paper.

Time Management in the Two Hours

You have 120 minutes for 60 questions, about two minutes each. The schedule below is a suggestion, not an official rule, so adjust it after a few practice papers.

To build this rhythm, attempt full-length papers in the exact two-hour format. You can take NSEJS-pattern online tests on Testkart, where the report shows time spent and accuracy by section, and compare it with the schedule above. Pair them with the official past papers, which show how IAPT actually frames Part B.

How to Practise Each Part

Practising Part A

1. Solve topic sets untimed first: Build the habit of working out why each wrong option is wrong, not only why the right one is right.

2. Add a confidence tag: Mark each answer as sure, likely or guess. After the test, check how accurate each tag was. This tells you when guessing pays off for you, and the test analysis on Testkart makes this comparison easier.

3. Cap the time per question: If a question has eaten three minutes, mark it and move on. You can return in the second pass.

Practising Part B

1. Write a true or false next to each option: Decide each statement separately, then combine the verdicts into your final marking.

2. Revise exceptions and conditions: Many statements are true only under a condition, such as a type of lens, a kind of reaction or a stage of a life cycle.

3. Review misses by statement: If you missed a question by one option, note exactly which statement misled you and why.

Common Mistakes to Avoid

• Treating Part B like Part A: Hunting for the single best option loses marks when two or three options are correct.

• Leaving Part B blank: With no negative marking, an unanswered Part B question can only score zero.

• Chasing quantity in Part A: Attempting all 48 with many weak guesses can cost more than it gains.

• Neglecting one subject: Equal emphasis means a gap in any one science shows up in both parts.

• Shading errors: A correct answer shaded against the wrong question number earns nothing. Leave time to check the OMR sheet.

Exam-Day Rules and the OMR Sheet

• Hall ticket and identity: IAPT's booklet says the hall ticket must be printed, attested by the principal with the school seal, and carried with a proof of identity.

• OMR answers: Answers are recorded on an OMR sheet. Fill the circles carefully and avoid stray marks.

• Medium of the paper: The language is chosen at enrolment and cannot be assumed to change on the day.

• Calculators: The documents we reviewed do not mention whether calculators are allowed. Ask your centre in-charge and practise without one.

• Unfair means: IAPT deals with these strictly. A centre or a student can be disqualified if malpractice is reported.

After the Exam: Result and Next Stage

IAPT expects the first-stage result on 25 December 2026. Every candidate gets a report card that can be downloaded from the IAPT website. Selection for the second stage uses a minimum admissible score and a merit index based on the top scores of the year, together with state quotas.

Pattern of INJSO, the Second Stage

The 2026 student brochure does not describe the INJSO paper. A listing on the HBCSE website shows that the previous INJSO took place on 1 February 2026 from 9 am to 12 noon, and that IAPT publishes the question papers and solutions on its junior science olympiad website. That slot was three hours, compared with two hours for NSEJS. Check IAPT's notice for the format once the shortlist is out.

Official website: https://iapt.org.in/