Humpty: It is not taking interest through exam fees. They collect it only a month or two months before under an agreed currency rate. It is not necessary to pay through them. Yes, if you have a credit card that is the best method ,if not paying through esoft is very easy. 







Anyway I am not going to trouble Dayan sir for such a things. He has many things to do other than worrying about babyish aathals !