Hello Amarlapudi Rohith. Thanks for contacting Careers360 and we hope we will be able to answer your query. 

We, at Careers360, have prepared this JEE Mains rank predictor just for students to check what rank they may get and estimate their chances of admissions in a college:

• https://engineering.careers360.com/jee-main-rank-predictor?icn=jeemain-rp&ici=quick_links

You are estimated to get a rank of around 681,214 - 756,214 and your probable category rank range will be 58200 - 65700.

I am sorry to say that you have no chance of getting into a IIIT with this rank. Please prepare hard the next time around. 

Hope this helps you and all the best! 

Sorry to say based on your JEE Mains score you cant get admission in any of the IIIT.

All the very best and good luck.

Sorry to say with 15-20 marks there's no chance at all to get any college through JEE main be it private or government even if you belong to SC caste though the cut offs aren't out yet but still they can't get around 15 marks so you need to go for some other option like you can go for other engineering enterence exams like UPSEE, BITSAT, SRMJEE, VITEEE and also look for private colleges like LPU, Manipal University or Galgotia University 

Good Luck!!.