VIdyamandir classes popularly known as VMC is now just a name and has a brand value from which they charge the students lakh of rupees. It is a coaching institute for IIT-JEE preparation for class 11th and 12th students of science background. There is a test held by Vmc according to which they allot students , good students provided with best batches and best teacher and weak by the rest. They do not assure you or guarantee you that you will crack the exam , its just your hardwork and sincerity which makes you clear the exam , these institute are the sideways just providing you with some notes and classes. All depends on a student not on these coaching institute. So yes I will not say its bad but it is not good also , its just an institute like others.