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The National Standard Examination (NSE) 2025-26 is one of India’s most competitive science olympiad examinations conducted annually by the Indian Association of Physics Teachers (IAPT). It serves as the first stage of the Indian National Olympiad (INO) selection process and is a gateway to representing India at international olympiads. Lakhs of students from Classes 10 to 12 participate every year to qualify for the next level.
For 2025-26, the examinations for all NSE subjects are scheduled in November at different time slots. After the exam, students eagerly wait for the NSE Answer Keys, Question Papers, and Solutions to analyze performance, calculate expected marks, and predict qualification chances.
This article provides complete details on NSE 2025-26 Answer Key release, how to download question papers, exam schedule, marking analysis, and expert-based solution guidance for all variants: NSEA, NSEJS, NSEP, NSEC, and NSEB.
NSEA, NSEJS, NSEP, NSEC & NSEB 2025 Question Paper, Answer Keys & Solutions by Aakash |
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| S.No. | Exam Name | Date of Exam | Answer Key & Solutions | |
|---|---|---|---|---|
| 1 | National Standard Examination in Astronomy (NSEA) | 22nd Nov 2025 | Download Now NSEA Answer Key & Solutions 2025 | |
| 2 | National Standard Examination in Junior Science (NSEJS) | 23th Nov 2025 | Download Now NSEJS Answer Key & Solutions 2025 | |
| 3 | National Standard Examination in Physics (NSEP) | 23th Nov 2025 | Download Now NSEP Answer Key & Solutions 2025 | |
| 4 | National Standard Examination in Chemistry (NSEC) | 23th Nov 2025 | Download Now NSEC Answer Key & Solutions 2025 | |
| 5 | National Standard Examination in Biology (NSEB) | 23th Nov 2025 | Download Now NSEB Answer Key & Solutions 2025 | |
The official examination schedule for NSE 2025-26 is as follows:
| Exam Name | Full Form | Exam Date | Timing |
|---|---|---|---|
| NSEA | Astronomy | November 22, 2025 | 2:30 PM – 4:30 PM |
| NSEP | Physics | November 23, 2025 | 8:30 AM – 10:30 AM |
| NSEC | Chemistry | November 23, 2025 | 11:30 AM – 1:30 PM |
| NSEB | Biology | November 23, 2025 | 2:30 PM – 4:30 PM |
| NSEJS | Junior Science | November 23, 2025 | 2:30 PM – 4:30 PM |
Students must verify the timings on their admit card and reach the exam center at least 30 minutes in advance.
The official NSE Answer Key 2025-26 for all subjects (NSEA, NSEJS, NSEP, NSEC, NSEB) will be released by IAPT a few days after the examination on the official website.
Students can download the answer key through the following steps:
Visit the official website: www.iapt.org.in
Click on NSE 2025-26 Answer Keys & Solutions
Select the exam (NSEA / NSEP / NSEC / NSEB / NSEJS)
Download the PDF of solutions and marking scheme
Along with the official keys, several coaching institutes such as Aakash Institute may also release unofficial answer keys and detailed video solutions on the same day of the exam to help students analyze performance quickly.
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Students can download previous year and current year NSE question papers for practice and self-assessment. Solving these helps in understanding question type, difficulty level, and time management strategies.
Visit iapt.org.in or coaching institute academic resources
Choose the exam section (Astronomy/Physics/Chemistry/Biology/Junior Science)
Download PDF format papers with solutions
Expert-based detailed solutions will be available for all NSE subjects, explaining each question step-by-step. These are extremely useful for:
Concept revision
Error analysis
Selection probability assessment
Preparing for INO and higher levels
Students preparing for INJSO, INPhO, INChO, INBO, and INAO must analyze solutions thoroughly to improve preparation strategy.
Based on past trends and difficulty pattern:
| Exam | Expected Difficulty Level | Key Focus Area |
|---|---|---|
| NSEA | Moderate to Difficult | Physics-based astronomy and calculations |
| NSEP | Moderate | Mechanics, Modern Physics, Electricity |
| NSEC | Moderate to Difficult | Physical & Organic Chemistry |
| NSEB | Moderate | Genetics, Physiology, Ecology |
| NSEJS | High | Concept-based logical reasoning & multi-concept problems |
Answer keys and question paper analysis allow candidates to:
Estimate probable score before official results
Identify strengths and weaknesses
Decide preparation strategy for INO stages
Understand expected cutoff trends
Cutoffs vary every year depending on difficulty and student performance, but typically top-performing students qualify based on Minimum Admissible Score (MAS) & Merit Index Score (MIS). Official cutoffs will be announced by IAPT after evaluation.
Students qualifying NSE will move to INO (Indian National Olympiad) stage. Final selections lead to Training Camps (OCSC) and ultimately International Olympiads.
NSE
Indian National Olympiad (INO)
OCSC Training
Pre-Departure Camp
International Olympiad Representation
Evaluate answers using solution keys honestly
Check topic-wise mistakes
Practice previous papers for INO advancement
Improve weak areas immediately
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Q1. When will the NSE 2025-26 answer key be released?
The answer key is expected to be released a few days after the exam on the official IAPT website.
Q2. Where can I download NSE 2025-26 question papers and solutions?
Students can download them from iapt.org.in and coaching institution websites like Aakash.
Q3. Will unofficial answer keys be available on the exam day?
Yes, many institutes publish quick solutions and video discussions on the same day of the exam.
Q4. Is the answer key available in PDF format?
Yes, it will be available as a downloadable PDF.
Q5. How can I check if I am likely to qualify for INO?
Compare estimated marks with previous cutoffs and exam difficulty level trends.
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