hello hani,

there is no shortcut in the success. if you are starting preparation now, then it is quite impossible, but if you complete all syllabus and only revision and overview required then you can, but for that hard work also required.

nothing is impossible, work hard and keep hard work in the right direction that is more important.

good luck

Hello,

Yes, you can score good marks in a month, first you should got for the NCERT books for the preparation of all the subjects it helps you to clear your concept. Solve the practice paper and previous year question papers.

For more practice you can prefer other books also;

1. For physics;

• HC Verma Concept of Physics Part 1.
• HC Verma Concept of Physics Part 2.
• IIT JEE Physics by D.C. Pandey.
• Problems in General Physics by I.E. Irodov.
• Physics for IIT JEE by Resnick, Halliday, Walker.
• Problems in Physics by S.S. Krotov.

2. For chemistry;

• Organic Chemistry by Morrison Boyd.
• Organic Chemistry by O.P. Tandon.
• Inorganic Chemistry by O.P. Tandon.
• Modern approach to chemical calculations by R.C. Mukherjee.
• Numerical Chemistry by P.Bahadur.
• Concise Inorganic Chemistry by J.D. Lee.

3. For Mathematics;

• IIT Mathematics by M.L. Khanna.
• Differential Calculus by A Das Gupta.
• Class XI and XII Mathematics by R.D. Sharma.
• Trigonometry, Geometry Books by S.L. Loney.
• Problems in Calculus of One Variable by I.A. Maron.
• Higher Algebra by Hall and Knight.

Hope this will help you. Best of luck.

Hii

Its very easy if you give all your efforts, dedication an honesty to your studies.
All you need to do is forget all other things and focus on your studies.
First things first try to cover all the important topics. Do not waste time unnecessarily studying anything and everything coming your way
Try to clear all your concepts and have a clear vision about any topic you have covered.
Don’t stress out, just keep up the good work with all your dedication and desire to get through it.
Firstly make a schedule of your daily routine and fix 8-10 hours of study with maximum possible efficiency.
Check which topics have more weightage and focus more on those topics. but do not skip others.
Sleep efficiently and wakeup early and revise all the your topics covered yesterday, its one of the best practices to do.
Smart study is something which you need to practice at this point of time.
There’s no need of studying continuously, divide your day in slots of 3-3 hours  with breaks in-between. So that both your body and mind remains relaxed and ofcourse efficient.
Practice Practice and Practice!!!
Note down all the formulas and important concepts so that they become handy for revision.
Don’t let your doubts pile up. Talk to your teachers they will be more than happy to help always and of course internet is always there. You can also post your questions on careers360 so that we can help you.
Always revise in mind before going to sleep as it would help you in remembring things more efficiently.
And also, 
Take online mock tests. 
Improve your calculation speed.
Try to solve sample papers and previous year papers regularly and time all your papers so as to analyse your speed and result.
Focus on tricks to solve your questions rather than wasting time on lengthy calculations.
Create exam hall like situation when you are solving your papers and remove all the disturbance. Keep a water bottle with you so that you are not getting disturbed.
Don’t get demotivated if your score is less in earlier attempts as it would automatically gain a pace with time.
Also I won’t advice you for late night studies, Sleep Early so as to keep your mind active and fresh.
The most important advice don’t let anyone or anything break your flow.

And Always remember hard and continuous work done with dedication never fails.