Hi there!

Well it is not possible to tell anything regarding seat allocation in any institute, as admission to any institute depends on various unavoidable factors like:

1- Difficulty level of exam

2- No. of students seeking to take admission in a particular college

3- No. of seats available in institutes

4- Closing rank for programs

5- Category of an individual.

But we can get a rough idea of closing rank by analyzing previous years trend of the institutes.

-------With 98 percentile your SC category rank would be anywhere in between 300 to 400.

Please note: This is not exact rank as ranking trend corresponding to marks keeps changes year to year, and this rank is been opted as per previous year trend.

-------As per previous years data, the maximum closing rank for SC category at NIT Trichy for various programs is around 4000 to 5000.

to check previous years closing rank of NIT Trichy, click here

https://engineering.careers360.com/articles/jee-main-cutoff-for-nit-trichy

------Considering this data you have chances for getting Electronics and communication Engineering.

Also if you wish to know about the colleges in which you may get admission, use college predictor tool by clicking on the link given below

https://engineering.careers360.com/jee-main-college-predictor

I hope you get answer to your question!

Comment below for any further doubts.