JEE Main 2018 Answer Keys by Top Coaching Institutes

Heya,

Yes, you can refill your category again. In the case of the April session JEE Main registration, you have the option to change your category while registering your details only once. You can switch from General to EWS if you have a proper certificate. Just be certain that the EWS certificate is granted before the last date of the April session form and complies with the NTA's requirements of validity.

Hope it helps!!!

if we talk about DTU (Delhi Technological University) — you must have at least 60% in PCM and pass all subjects. The 75% rule is not strictly applicable here, so you can get admission based on your JEE Main rank and Delhi quota, if applicable.

For IIIT Hyderabad, admission is based on JEE Main percentile/rank, but the institute also requires a minimum of 60% in Class 12 (PCM). So, even with less than 75%, you are eligible if you meet this 60% requirement.

Hope you understand. ALL THE BEST.

Hello Tanishka,

Although i believe your attempting strategy and sequence depends entirely on your stage of preparation and your personal progress, i would suggest you sit for your January attempt even if you aim to seriously prepare for April.

Whatever stage of syllabus completion you are at, i suggest you give it a try to get an estimate of the exam difficulty and see roughly where you stand among the applicants that year. No matter how many mock tests you attempt, the actual examination environment happens to be very different from mock tests. The first attempt is going to give you an idea of the exam environment so you can prepare for your April attempt better.

All the best for your exams!

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

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- Online Coaching for IIT JEE Main, NEET, BITSAT and More Exams - Careers360

Hello,

Yes, NCERT books are good for the JEE exam, especially for building a strong conceptual foundation and for chemistry, but they are not sufficient on their own for high scores. NCERTs are essential for understanding the basic concepts of physics, chemistry, and mathematics, and many questions are directly based on their content, particularly in inorganic chemistry.

I hope it will clear your query!!

Hello,

The best books for JEE Main Exam are:

For PHYSICS:

1. Concepts of Physics by H.C. Verma (vol1 &2)
2. Complete understanding physics by D.C.Pandey
3. Fundamental of physics by Halliday, Resnick, and Walker

For CHEMISTRY:

1. NCERT Textbooks (class 11&12)
2. O.P. Tandon
3. J.D. Lee's Concise Inorganic Chemistry
4. L.G. Wade Jr. Organic Chemistry

For Mathematics:

1. mathematics by R.D. Sharma (vol 1&2)
2. Higher Algebra by hall &knight
3. S.L. Loney's Plane Trigonometry Part-1 and Plane Coordinate Geometry

you can also check the link for the best books for JEE Main exam:

https://engineering.careers360.com/articles/best-books-for-jee-main

I hope this answer helps you!

Hello Hitesh

• A state EWS certificate is usually not valid for JEE Advanced or JoSAA counselling.

• You’ll need an EWS certificate in the central government format, as required by IITs.

• Even if issued by your local authority, it must clearly mention it’s as per Govt. of India norms.

• You can visit your tahsildar/revenue office and request it in the “central format for JEE.”

• Make sure the issue date is after April 1, 2025, for it to be valid in 2026 counselling.

• You don’t need it at the time of JEE Main, only during Advanced registration and JoSAA.

• You still have enough time to get it updated, so no stress, just don’t delay it too long.

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!