You are belong to PWD Category and your predicted score is awesome ,So you don't need to worry about ,you will get NIITs and IIITs according to your own choice.
Your General category rank will be approx in 8k-9k,which is good rank , through this rank you can enter in top NITs without PWD quota.
Now,Pay your attention in jee advance preparation , don't bother about 2nd jee mains exam,you have cleared 1st stage.
Let me know ,If you have any other queries .
Best of luck for jee advance exam.