Thank you for you reply Damphe. So it means that if i don't get through h1 lottery, then i have to enroll in college till may 2009. But i m wondering what if i get the I-20 in may 2009 for the spring season.

To stay on safe side, i am thinking to get I-20 for this spring. If i enroll in any school then is it possible to file H1 in April ?

Thank you.