Sir, I am expecting 99 marks in JEE advanced 2019, will I get seat in IIT sir

Hello dear aspirant

Congratulations on clearing JEE Advanced.
You can definitely clear JEE advanced at 99 marks,  but your score isn't enough to get you a seat in any of the IIT.
IITs are the best engineering institutes in the country and you need an air below 4k to get a seat in IIT and unfortunately,  you can't make it to any of the IITs.

Hope I am clear