Hello Ankit Srivastav. Thanks for contacting Careers360 and we hope we will be able to answer your query. 

I should say that even 6000 characters are not enough to answer your question. What, according to you, is the meaning of "best"?

Note that almost all IIT JEE coaching centres give results and produce students that pass Advanced. So, there is no parameter that can determine the success of a JEE coaching institute other than the number of toppers it produces.

There are so many of them that have their branches in Kota and elsewhere in India. The Big Three are:

• Allen;
• FIITJEE; and
• Resonance

For a detailed analysis of the best coaching institutions in the country, I would like to direct your attention to this Quora question:

• https://www.quora.com/Which-are-the-best-IIT-JEE-coaching-classes-in-India

Hope this helps you and all the best!