Dear Vamsi

88 percentile is a nice mark.

My suggestion is you should try. they are a lot of change is you get the college.

but get Cs/IT/EC is difficult but not impossible.

so try it 

I hope you get the best  NIT college.

The jee main percentile for the privilidged section OBC is 74 as per the details by jossa this year. Since you are a privilidged category meritorious student you can definitely get one of your choice but not particularly NITs of south only. Wait for the counselling proceedings to begin. May you get one. Good luck!