They do not offer free trial, in case if you wish to take a trial it would be Rs. 400. In case if you wish to join after that the money will be adjusted in the total amount. For some reason if one cannot do the classes enrolled for once you have paid and even if you have done one class with them, you cannot carry forward. You simply have to rejoin later by paying the full fees. They are not responsible for any refunds even if you have realized that you have a medical condition or any other personal reasons after joining the course. The classes have to be completed in 4 consecutive weeks only and payment will be taken on prodatabase, i.e., if you join from the mid of their existing session, you will only be charged for that many classes remaining for the month but if you join from the first class of their session, full payment has to be made or you can choose to pay per class (i.e. Rs 400).