Good aim nasim keep it up well for the prep of css if u want to appear in 2013 then time is so short in ur hand
and time durition is upto u how fast u understand and complt ur subjcts opt and compulsry
and how to start prep first slect ur opt subjcts and thier books and go thorugh it and first read the terms and ccondition of css its also givn in the fourm main page..
any other help u can ask