Hi

I won't lie dear ,it's quite  difficult  to get 250 marks in preparation of just one month but you don't need to worry if you remain dedicated and focused towards your studies then nothing is impossible you can definitely get it

Some of the most important chapters of JEE mains with highest weightage  are provided below

MATHEMATICS

Integral Calculus
Matrix and determinants
Probability
Trigonometry
Differential Calculus
Co-ordinate geometry
Straight lines

PHYSICS:-

Modern physics
Current electricity
Electrostatics
Work, Energy and Power
Newtons Law of Motion
Kinematics
SHM

CHEMISTRY

Chemical Bonding,
General principles of organic chemistry
Atomic Structure & Nuclear Chemistry,
Mole Concept,
Ionic Equilibrium,
Periodic Table & Periodicity in Properties,
Alcohol & Ether -Reaction Mechanism,Aromatic Compounds,

Also follow the below mentioned tips:-

Make a routine or a time table and try to give at least 8 hours to studies and out of that 8 hours you need to devote at least 4 hours in solving numericals and mcqs

Revise :- there's no point of preparing for the exam if you couldn't recall anything in the examination hall, so you should stress on revision as well.

Solve previous year question papers and mock test papers ;- You should solve these , it will give you idea of types of questions asked and their difficulty level and will help you a lot.

You can prepare well for JEE mains.  using our JEE mains knockout the link for the same is provided below

https://learn.careers360.com/knockout-jee-main-april/

Good luck for your preparation

Thankyou

If you have scored 86 percentile already once, it will not be that difficult to prepare and score more than 250 in July session, You just need to focus more on those topics that have more weightage in the syllabus.

In Physics, Modern Physics take the top slot with 5 questions. Heat and Thermodynamics, Optics, Current Electricity, Elcetrostatics get 3 questions each. Magentics has 2 questions and the rest get 1 question each.

In Chemistry, Transition Elements and Coordination Chemistry, Periodic Table and Representative elements take 3 questions slot. Thermodynamics and Gaseous state, Atomic structiire, Chemical Bomding, Chemical and Iconic Equilibrium, Solid State and Surface Chemistry and Nuckear Chemistry and Environment get 2 questions slot eacch and the remaining get 1 question each.

In Mathematics, Co-ordinate Geometry gets 5 questions. Limits, Continuity and Differentiability, Integral Calculus get 3 questions slot each. The rest get 2 and 1 questions slot. For complete breakdown, please read our article: https://engineering.careers360.com/articles/jee-main-syllabus-weightage

We have Knockout packages that might help you in your preparation: https://learn.careers360.com/knockout-jee-main-april/ . Alternatively, practise and practise, time management should help you out. Make sure you practise atleast one mock test a week. Please read our article for more tips: https://engineering.careers360.com/articles/jee-main-preparation-tips