Hello aspirant .

As you have scored 73 percentile in Jee mains examination and general ews category cutoff is 78.21 percentile . As your score is less than cutoff score , you are not eligible to write jee advanced Examination.

It is difficult to get seat in iiits

To get information on college that you would get refer 

https://engineering.careers360.com/jee-main-college-predictor?utm_source=C360&utm_medium=qna&utm_campaign=jee-main-college-predictor

All the best.