JoSAA

NTA will officially declare it on its website. Documents required are nearly the same as every year. These documents are basically category certificate, class 12th certificate, birth certificate/class 10th passing certificate, medical certificate, Aadhar card/government valid ID, etc.

No, chance at this rank in JoSAA counseling.

Mostly only one language (English) would be considered and the other language would be neglected.

Yes, you can participate in JoSAA counselling, but I don't think you have any chance of getting a college.

Yes, you are eligible for JoSAA counselling, but I don't think you can get any college in JoSAA.

Hello Rishab, It depends on the college. For a top ranking college, the admission cut-off will be even 100 or 150 marks higher than the qualifying cut off. For an average college, the difference will be lesser.

Here is the order:
NIT Jaipur
NIT Nagpur
NIT Bhopal
NIT Raipur

Yes, you are eligible for this counseling.
Please use college predictor tool for better results
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor&ved=2ahUKEwjdmKnz4bHiAhU1jOYKHZnJDRsQFjAAegQIAhAB&usg=AOvVaw1N9BzFtyUCP4JU-2UQHQ0H

JoSAA is a body which conducts the counselling process for various NITS, IITS, IIITS, and GFTIS on the basis of JEE Mains and JEE advance rank.