Hi ! You have a fantastic rank in St category ranking. Well, after this it seems that you will get some good nit and IIIT. Well you will surely get nit Durgapur, nit Manipur, nit Jharkhand, and nit Delhi. You may get lower streams in nit Rourkela and nit Allahabad and nit Calicut. Other good government colleges include IIEST shibpur, bit Mesra, NSIT,DTU and Amity. IIIT includes IIIT Kalyani, IIIT Kota, and other prominent old IIITS. But don't expect IIIT Hyderabad, IIIT Delhi, IIIT Bangalore. So hope you understand and best of luck to you. Given below a link will be useful for you. 

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/jee-main-college-predictor&ved=2ahUKEwi38aObx-jiAhVCfSsKHfkKD8YQFjABegQIBhAB&usg=AOvVaw1pTMu5LewXe0n3JPiA8V2U