i have completed 10th.in the leave,what should i prepare for IIT-JEE.or i can relax.what topics should i read.what are the books required

No, this is not the right time to relax. You should start with the topic of Algebra in Mathematics. Start the topic with the book on Higher Algebra by Hall & Knight. You can also join a coaching for IIT JEE. You can even try options for online coaching.

Feel the heat of IIT-JEE 09 View the following links :

IIT-JEE 2009 Cutoffs

IIT-JEE 2009 Ranks

IIT JEE 2009 Solutions