Hello

If your fundamentals are strong, you will have to study dedicatedly and smartly to secure a good rank in the exam. JEE Main is a National level entrance exam and competition is reallly tough to get a seat in any good engineering college. 

You will have to prepare a strategy for better preparation. Make a time table for your preparation and divide your time separately for each subject. In the last few days, you can solve previous year question papers and mock tests.
You can cover the topics carrying more weightage. Solving previous year question papers and mock test will help you to know about the exam pattern and types of questions asked in the exam.

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Good Luck!

 It is really hard to prepare in 20 days for IIT JEE

yet if all the concepts are clear all you need to do is you can practise previous year question papers and you can solved queries from NCERT books for mains.  Most of the questions are based on Board concepts.

remember one thing stick to the fundamentals.

for Inorganic chemistry do not panic much only theory is enough.

just keep on revising formulae and make sure not to commit any silly mistake.

Keep yourself healthy and confident and Go for the exam.

Greetings, 

Saisrivinayreddy I am assuming that you must have started the preparation an year or so ago and you are now asking me for end days preparation because if this is not the case then  I have to mention this fact  that you cannot prepare for JEE Mains in just 20 days. Even if you aspire to do this in such a short span then you should be brilliant in your academics . I would rather advice you after taking this thing into consideration that you should take an year drop for preparation . Still I am suggesting some books which will be beneficial .

PHYSICS 

PHYSICAL HC VERMA ( VOLUME 1 AND 2 )

ARIHANT - UNDERSTANDING PHYSICS BY DC PANDEY 

MACHANIC 1 , MACHANIC 2 

ELECTRICITY AND  MAGNETISM, WAVES AND  THERMODYNAMICS 

OPTICS AND MODERN PHYSICS 

JD LEE PHYSICAL 

FOR REVISION 

ARIHANT - JEE MAINS IN 40 DAYS 

CHEMISTRY 

CONCEPT OF ORGANIC CHEMISTRY 

PHYSICAL CHEMISTRY - OP TANDON 

MS CHAUHAN FOR ORGANIC CHEMISTRY 

OP TANDON FOR ORGANIC CHEMISTRY 

FOR INORGANIC CHEMISTRY 

NCERT 

OP TANDON 

MATHS 

RD SHARMA IIT-JEE ( VOLUME 1 AND VOLUME 2 )  

TATA MCGRAW HILL 

ARIHANT PUBLICATIONS JEE MAIN AND ADVANCED 

AMIT AGARWAL FOR INTEGRAL CALCULUS AND DIFFERENTIAL CALCULUS 

PROBLEM PLUS IN IIT MATHEMATICS BY A DAS GUPTA 

COORDINATE GEOMETRY FOR IIT JEE BY SK GOYAL 

I hope this article might have helped you figure out from where you need to start if you taking a drop if not then just go through your NCERT books and previous year question papers to give it a shot . Buy Arihant Jee Mains in 40 days and some other books for revision purpose . If you are still not satified with the answer or have any further  queries than do drop a comment or post another question and I will surely figure out a way to help you out . 

Hello

As you know that students start preparing for it from 2 years back because it has very vast syllabus and it needs time to understand and to practice all the concepts and theory.

it will be not possible to cover the all syllabus and concepts within 20 days.

It also depends upon you that how much you have learnt and what is your preparation at present time.

because it is impossible to start with the base level at that time.

All you cando is that study main topics like :

permutation and combination

sequence and series

algebra 

thermodynamic

fluid

waves

inorganc and physical chemistry

and you can solve last years papers with proper sitting.

All the best.

Hiii..

First of all you need to calm down and stop panicking.Since you have prepared well, there is no point getting panicked now.
All you need to do is utilize the time now to consolidate the information and knowledge you have, then starting new topics or the ones you think you are weak at.
And about the mock papers, I would suggest you to practice the original last years AIEEE and JEE Mains papers since you are not left with much of the time and solving these papers would give you more accurate ideas about the level and type of questions asked in the examination.
Solving the various test series and mock papers would have been a good idea if you had more time, like 2 months or so. But as of now with barely a month left, you should try the original papers and get an idea about the paper, which would also give you confidence and also by analyzing the papers you would get to know which are more scoring subjects and which have more weightage. Like nuclear physics is an easy topic and questions from this topic come both in physics and chemistry ,electrostats and magnetism again are favorites in the mains. So you need to do Smart study than to worry.
If you have any other query, you may ask :)
Hope you get it...

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