We admit students annually in our regular classroom course. They just to have pay a one-time only fee at the beginning, after registration.
We have a famous test series consisting of different levels of tests that sharpens and tests the skills of students from time to time. Even a non regular classroom student can apply for the same and enjoy full benefits of the series.
There’s also a concept of an hourly doubt solving class. This way if a student wishes to study himself, and simply wants expert help at clearing his/her doubts, he can pay an hourly fee and seek expert guidance for solving all his doubts.