Sham, Instantcert "academy" is basically online study cards. There is no "academy" per-se. It's just a study supplement to help out. Are you currently in America or India? If you are in America, what state are you in? I'm asking this because some states like California have VERY low in state tuition prices at a community college. If you are in India and are looking for an American degree then you can do it through Excelsior or other colleges. Although they are not terribly expensive, they are not cheap either and will take a few years. If you choose the American degree route make sure you have a good command of the english language as things can get a bit confusing at times and in certain subjects you might be at a disadvantage. By learning in your native language, you only have to worry about converting the finished idea, whereas in english you will have to learn in the host language which could make things more difficult.

-The CLEP's, & DSST's will augment your learning but you must take the appropriate ones as needed. Good luck! If you have any further questions I'll try to be of assistance.