The chate classes at mumbai is a great place for students whi wants to score good in exams.
The classes completes the syllabus well in advance and also pays personal attention to each student.
One thing which I like the most is that the classes conducts exams at regular intervals which keeps the students upto date.
They also provide the study material though I dont find that useful.
But I want to give an advice that we should not rely totally on classes, an equal hard work is required from the student side also.
I hope that this information is useful to you.