Hi there. 

Only qualifying JEE advance won't do.

You will have to score high marks and a good rank to stand chances of getting into any IIT. 

Check the following link to have an idea of previous years cut off of JEE advance examination. 

Here is the link: 

https://www.google.co.in/amp/s/engineering.careers360.com/articles/jee-advanced-cutoff/amp

All the best!

hai 

Raj sharma 

The thing is that if u qualify the JEE advance u may get the IIT but  it will be depending upon the  ranking u got and also  the category and cut off of the particular IIT but i one thing u will surely get the NIT's and IIIT's 

please mention in comment that how much marks u can get and also the catagory so that i can help u surely

All the best