Sir I have scored 100 marksnin jee advance 2019, I am from obc, will I get any iit or should I drop

Hi ! Well first of all check your JEE advance rank in rank predictor and then check college predictor. I think it is highly dependable because of changes in cut off and vacancy. Still you can get lower IIT's like IIT Jammu, IIT Thirupathi with lower branches. So hope you understand and best of luck to you. Given below a link of rank predictor. Just check it.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/articles/jee-advanced-college-predictor/amp&ved=2ahUKEwickbWgw9HiAhXKb30KHex4CKIQFjAJegQIBxAC&usg=AOvVaw04eZVnM7-IQqeSYMeGl8Wq&ampcf=1

So hope you understand and best of luck to you.

HI there,
Hope you are doing well.
With 100 marks in JEE Advanced, your OBC rank would be around 4000-4500 considering circumstances similar to the previous year.
Sorry to say, but with these ranks you can't get any branch in any of IITs.
Hope it would help.
Thank You