Hello,
It is not possible to give an exam for getting an admission to IIIT after your 10th. Candidates who want to get admission to UG programmes in IIIT have to appear for JEE Mains. And to be eligible to appear for JEE Mains the candidates should either have completed their 12th or should have appeared for it that year. So you will not be able to give the exam just after 10th.
But you can prepare well as you have plenty of time now and give it a shot once you complete the 12th std.
Good Luck
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