please help me whenever i sit to study then my attention wanders around here and i can not study well....

You need to decide your aim or Objective to concentrate yourself for your study. Objectives and aims are one of the best sources of motivation, as it will keep you focused and enable you to “do whatever it takes” to accomplish your goals. Furthermore, cleverly chosen objectives will inspire you to greater heights, allowing you to reach your true potential. Some times students get fadeup of studying & hard work but to close your eyes think once about your future as a successful person where you want to be, it will help you to do hard work & to move on to further steps.

You can follow below given tips

1. Set a goal & determine an appropriate reward for it’s accomplishment

2. Associate the efforts you take with the positive reward

3. Ambitious challenges require outstanding rewards

4. Basic objectives should only be rewarded slightly

5. Avoid vagueness and negations.

6. State how you intent to achieve your goal.

7. Force yourself to do 1 or 2 hour of studying then slowly it will convert in your habit & routine.

8. Very Important be positive about yourself.

If you want to crack your exam you should be determined and self motivated. You should concentrate towards your study if you want to crack your exam. You need to do hard work alongwith smart work.

You should make proper time table to follow. Know the complete sylalbus and exam pattern of the exam. Focus on important topics. Make your important notes it will help you in revision.

If you wish you can do group study. So, that you concentrate on your studies. Make sure you switched off your mobile phone whenever you study.

JEE is not easy exam to crack if you aim to get into top IITs make sure you prepare accordingly.

All the Best!!

Hi Anand,
The very first thing is to realize strongly is that you have an aim that you are serious to achieve and for that no matter what you will not distracted.

JEE Main is one of the main and tough exam for engineering aspirants for admission in top notch colleges and branches.
You cannot afford to take things lightly.
One you are confident to achieve what you want then you can decide to create plans and routine accordingly. Every person has a certain time frame in which his attention and grasping power increases or is much active than usual.
So what you require is to recognize that time frame and accordingly work towards it.

Make a daily plan and function accordingly. Set your daily targets and in take small break durations complete your study plan.

Achieve those targets. Donot focus on completing maximum books, but focus on completing the quality books and basics of each topic.

make sure you practice previous tests and timely give online/offline test to analyse your performance.

A self motivation is something which will help you!
Good luck.