i just want to know that am i eligible to take admission in iil as i've just given 10+2 board exams recently and as i don't have 12t result?

Yes you are but in this case take admission on your own risk as if you will fail in your 12th exam than colleges will cancel your admission as admission in such condition is given on temporary basis and fee given is not refunded. so take admission only if you are confident about your result.