Dear student,
to get a admission in an IIT, you will have to clear IITJEE-2010 and after that appear for the counselling. This is a correct way to get a admission. There will be a single target to get a admission in IIT so you have qualify the test on April 11. only then you are eligible. if you will not qualify the test with a good rank , IIT counselling will not call you for a counseling. So Dear student, try to score a good rank and get a admission in one of the best branch in IIT.
IIT-JEE is like a token to enter into IITJEE. so focus into JEE and do not try to skip any test.
With regards
Pramod Kumar
IITR alumni