which is better coaching class in indore allen or kalpavriksh?

Go for allen...it's good....but you have to give more time on self studies rather than coaching in 1 year

You can join any coaching institute according to your choice. Both coaching institutes have same reviews and both are good.

To crack your  exam you need to be self motivated and determined you can also follow below strategies to crack your exam

1- You should refer NCERT books for your preparation. Make sure your basics are clear. Don't use much reference books. You can use good recommended books for your preparation.

2- You can use previous year papers to understand the exam pattern and level of questions.

3- You can solve as many as MCQs for your practice and to build up speed and accuracy. You should solve short-answer questions, subjective-type problems and questions based on assertion reasoning to develop deep understanding of the subject.

4-Important topics you should cover for JEE Advanced are:

Physics: Mechanics and Electrodynamics are the two most important topics but one should also devote time to Heat, Thermodynamics, Optics and Modern Physics.

Chemistry: General principles of Organic Chemistry are easy to understand. Numericals of Physical Chemistry are scoring. Inorganic Chemistry has many facts and figures and requires constant revision.

Mathematics: Master inter-relationship between various topics. Coordinate Geometry and Vectors can help one to solve problems related to complex numbers. Permutation and Combinations help you to solve problems of Probability. Trigonometry and Calculus again help one to solve all types of problems.