Vidya mandir classes is one of the best institutes for IIT preparation. Their result is phenomenal. The comparison from other institutes like Fiit Jee, Aakash, Naraina, etc could easily be made with the tests that they take for admission into their institutes. Vidyamandir don’t run for the quantity but the quality of students, which I believe is a big plus point. Also faculty is very cooperative when it comes to extra classes, doubt clearing, consultation on the preparation strategy, etc.
Last but not the least , if you are pretty serious about reaching iit, then don’t think twice before joining it.
Highly Recommended !