Yes,

In the year 2020, rules were changed and according to NTA (National Testing Agency), responsible body for the conduction of JEE MAINS exam, Candidates having more than 40 percent disability will be getting extra 20 minutes per hour that means 1 hour extra in JEE MAINS exam. But the Candidates will have to ask the invigilator for extra time. Person having disability less than 40 percent will not be getting 1 hour. A candidate needs the PWD Certificate in order to prove his/ her disability.

Good Luck.