which is the popular ii institute in kolhapur/pune?

Here's is the list of various coaching institites for IIT based preparation in kolahpur/pune-

IMS

Career Launcher

Chate Coaching Classes

Surya Academy

TIME

Oscan Academy

Chate Coaching Classes

Success Academy

However if you need a hassle free coaching and want to prepare for IIT just being home then you certainly need not go anywwhere as you could get all the necessary coaching from askiitian's itself. For more information and various packages, Click Here