Hello student.

Firstly, congratulations on scoring a percentile of 98.863. It is a good score. BUt the competition keeps increasing by the day. IIIT Hyderabad is one of the top premier institutions in the nation. Since you have mentioned that you belong to the obc category you may have a chance of getting into some good nits though we cannot say for sure that you will be guaranteed a seat. Still you can apply for it. Based on the reservation there is a chance that you might get through

I suggest you to apply for state colleges or any other private and government institutions such as NIT Calicut as well. There are pretty many good private institutions where you can apply. Here are few good private institutions

1. Ssn college in chennai

2. Amrita institution in coimbatore

3. Psg college of engineering in coimbatore

4, cbit college in Hyderabad

5. Vasavi college

6. Sastra deemed to be a university in thanjavur

You can check your colleges using the link below

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