Greetings!

If you appear for Jee main and wish to qualify for Jee advance, it would be very easy as the cut-off for Gen PWD category is quite low every year and one can easily qualify, securing a seat into IIT after appearing for Jee advance is also quite easy as the cut-off rank for Gen PWD category is quite low but it all depends on the person at the end. Best of luck!

You may refer to this for exact data of last few years:

1. https://engineering.careers360.com/articles/jee-main-cutoff

2. https://engineering.careers360.com/articles/jee-advanced-cutoff

I hope this was helpful. Thank you!