Is it important to get good marks in 11th and 12th for admission in IIT colleges in India ??

The marks of 11th grade do not matter at all during admission or application for the entrance test for IIT JEE .. You just need to score more than 60% marks in 12th grade examination ..

IIT JEE eligibility:
You have to passed 12th grade with Physics, Mathematics, and chemistry subjects from any well recognized board of education.. and it is also needed that you have to secured a minimum of 50% marks in total including all subjects in 12th grade ..

Important dates :
Date of JEE(Advanced)-2014
Sunday, May 25 2014
Paper-1 : 09:00 to 12:00 hrs (IST)
Paper-2 : 14:00 to 17:00 hrs (IST)

Contact details :
The Executive Director
JEE(Main), CBSE
Plot No. 482, F.I.E,
Industrial Area, Patparganj,
Delhi-110092.
Telephone No.:011-22144770, 011-22144774, 011-22144775
Helpline No.: 8506061071 to 78
Email: jeemain[at]nic[dot]in