Hello there,

To prepare for the JEE Exams , the study material and the Test series of Allen are better then the Akash. If you solve the study material and test series with full honesty, then you have very good chances to get a very descent score in the JEE Exams. But alongwith that, you should solve previous year JEE question papers. This will helps you a lot. By this you will get to know the type of questions asked in the exam, their difficulty level and many more things.

So, solve as much papers and problems as you can.

Hope it helps