Assuming you are from General Category, with 99.8867 Percentile in JEE Main Febraury Attempt, your CRL will be anywhere between 1.1-1.3k in JEE Main. For Other State Students the Last Cutoff at NIT Trichy CSE was 781 the Previous Year, while it was 4.7k for Home State Students. Of course if you have certain categorical advantage your have better chances in securing a seat there.

However, if not NIT Trichy, you have many other Top Options among NITs, IIITs and GFTIs. For more information and college prediction do follow the link below

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

As far as IIIT Hyderabad is concerned, I dont remember the Cutoffs in the CSE Branch to be anywhere below 99.9-99.91 in the previous years. However do follow the link below for the same.

https://engineering.careers360.com/articles/iiit-hyderabad-btech-cutoff/amp

Though with 99.8867, your percentile you may secure some of the CSE Specializations(Dual Degree) or ECE at IIIT Hyderabad.