Hello aspirant...
You can join resonance coaching centre for the preparation of Jee Advanced.It is very effective in giving good results every year consistently.Its main branch is in Kota .It is better for you to do preparation from Kota if you want to join resonance coaching.They have separate classes for JEE mains and Jee Advanced.There doubt classes, regular  test similar to exam condition organised.It prove to be very helpful for you.
Hope it helps you.
All the best.

Hello Animesh
If you really wants to get admission in IIT than you should join any good institute ( not specifically resonance) because it will be your own efforts and studies ( 70-80%) rest is of your teacher which will convert into results.
All you need is study material ; time ; proper guidance and guider or teacher who can teach and solve your doubts .
There are many institutions .
But you should keep in mind one thing that donot get frustrated and distract from your goal.
You have to study for 8-10 hours a day ( even more ) for a good competitor and to produce a good results.
You can even study in a local institute but it's all depend upon you .
So good luck

Hello Animesh
Yes You can join Resonance or Allen or Nucleus education for preparation of Jee.
In case Of Allen You will get some other facilities like Well qualified doctors for free medical check up . For entertainment purpose Allen conduct some Mahstav every year. In my Session MARG was organised. In case of academics nearby all institutes are same which I have mentioned.

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