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JEE Main 2021 Question Paper with Answer Key (July 20)

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NTA has released the official JEE Main 2021 question paper and answer key for the 3rd session on July 20. Careers360 has compiled both forenoon and afternoon shifts.
JEE Main 2026: Preparation Tips & Study Plan
Download the JEE Main 2026 Preparation Tips PDF to boost your exam strategy. Get expert insights on managing study material, focusing on key topics and high-weightage chapters.
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Application Date:18 September,2025 - 12 November,2025
Application Date:31 December,2025 - 31 December,2025

QnA related to JEE Main

Ask your question related to JEE Main

Hello Swati

Yes, your EWS certificate will be valid for JEE Main 2026 and counselling if it’s issued after April 1, 2025.
This is because EWS certificates are valid for one financial year from April to March.
So, a certificate made in October 2025 will be for FY 2025–26, which covers both JEE and counselling. You’ll need the certificate number during JEE registration in October 2025.
Even if you don’t have it yet, you can still register and upload it later during counselling. Just make sure the certificate clearly mentions the correct financial year.
Always keep a few extra copies and the original ready for verification.
You're good to go if it’s issued after April 1, 2025

Hello,

Yes, there are some good residential schools in Tamil Nadu that provides both board studies along with best and strong coaching for JEE/NEET.

Here I list out best Residential integrated school in Tamil Nadu:

Vevea ham School Dhara Puram, Tirupur

Narayana Boarding School, Athipalayam (Coimbatore)

Chinmaya International Residential School (CIRS)

Sindhu Schools, Dhara Puram

From my opinion, you should visit and check their past records, fees, and see which one suits your needs best.

All the best.

Hello,

Here are some important chapters for JEE Mains:

Mathematics:

  1. Calculus: Integral Calculus, Limits & Continuity, Differentiability, Application of Derivatives.
  2. Coordinate Geometry: 3D Geometry, Coordinate Geometry, Vector Algebra.
  3. Algebra: Complex Numbers and Quadratic Equations, Statistics and Probability, Permutations and Combinations, Sequence and Series.

Physics

  1. Mechanics: Laws of Motion, Work, Energy and Power, Rotational Motion, Kinematics.
  2. Thermodynamics & Waves: Thermodynamics, Oscillations and Waves
  3. Electricity & Magnetism: Electrostatics, Current Electricity, Magnetism
  4. Optics: Ray Optics, Wave Optics.

Chemistry

  1. Physical Chemistry: Chemical equilibrium, Chemical; Kinetics, Thermodynamics.
  2. I norganic Chemistry: P-block elements, Coordination Compounds, Periodic Table.
  3. Organic Chemistry: Hydrocarbons, Organic Chemistry - some basic principles and techniques, Aldehydes, Ketones and Carboxylic Acid.

These are the high-weightage chapters; by focusing on these chapters, you can improve your score.

you can also check this link for more details:

https://engineering.careers360.com/articles/most-important-chapters-of-jee-main

I hope this answer helps you!

Given the condition the you were a PCB student and gave your mathematics equivalent a year later as a private candidate, you are eligible for JEE MAINS. Infact a PCB student is also eligible to take the JEE MAINS. However, the admission process into various NITS and other colleges will be slightly complex than the general admission process. Though, factually you are eligible as a candidate and as a student who is eligible for all the colleges falling under the JEE umbrella including NITS.

Hello, Based on the current date, the application process for both sessions of the JEE Main 2025 has already been completed. The exams for 2025 were conducted earlier this year.

You are likely asking about the upcoming JEE Main 2026 examination.

Based on the schedule followed by the National Testing Agency (NTA) in previous years, here is the expected timeline for the JEE Main 2026 application forms:

For the First Session (January/February 2026):

  • The application forms are expected to be released in November or December 2025.

For the Second Session (April 2026):

  • The application window for the second session typically opens after the results of the first session are declared, which is usually in February or March 2026.

Hope it's helpful to you.

Hello,

Yes, you are right; you can upload your class 10th marksheet for the JEE Main 2026 registration, as DigiLocker documents are considered equivalent to original physical documents by law. You should download the digitally signed marksheet from your DigiLocker account to upload it to the JEE Main application form.

I hope it will clear your query!!

Hello,

As of the JEE Main January 2026 session, candidates can no longer choose their preferred exam cities. Instead, the National Testing Agency (NTA) will assign your exam center based on the address linked to your Aadhaar card.

I hope it will clear your query!!

Yes, you can still pursue a B.Tech. at UPES even if you didn't qualify for JEE Mains. UPES offers multiple admission pathways:

1.UPESEAT Exam – UPES has its own entrance exam. You can apply through this.

2. Board Merit – If you have 80% or more in Class 10 and 12 (PCM minimum 80% in 12th), you can get admission directly.

3. SAT Score – If your SAT score is 1040+, you are eligible to apply.

4. CUET – Some courses also accept CUET scores.

Tip: Check your eligibility, choose the suitable pathway, and apply online via the UPES Admission Portal.


Hello

Here is the short guidance for you to score well and prepare for JEE

  • Stick to a smart routine – Prioritize high-weightage topics and revise daily with a focused timetable.

  • Solve PYQs & mock tests – Practice like it’s the real thing; analyze mistakes without panic.

  • Quality over quantity – Understand concepts deeply rather than rushing through chapters.

  • Stay healthy & rested – Your brain needs sleep, water, and breaks to perform at its best.

  • Trust your journey – Stay calm, believe in your preparation, and avoid comparing with others.

Hello

Since you’re reappearing for your Class 12 boards in 2026, that will be counted as your official passing year. So, you will be eligible to write JEE Advanced in 2026 and 2027. Although you submitted the boards in 2025, that attempt won’t be considered due to the compartment. JEE Advanced rules allow 2 attempts in 2 consecutive years after passing 12th. So you still have both chances left, which is great! Just make sure you meet the other eligibility conditions too. Keep your focus strong, you’ve got this!

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