Hey aspirant

Admission to IIT is based on jee advanced. For writing jee advanced you need to qualify jee mains with minimum cut off. As you have 30k rank you have a good chance of getting admission in nit also you can appear for jee advanced. By improving your score and percentile you could get admission get for iit. For more details refer below link https://engineering.careers360.com/jee-main-college-predictor?utm_source=qna&utm_medium=jee_cp