Central Board Of Secondary Education [CBSE] — difficulty level in set 2 class 10

Am really shocked to observe that the difficulty level of set 2 in cbse (Class 10), 2019 is much more than in other sets. Like seriously? So students will not get their fruit of hardwork. It's just based on their luck n fate. That's really not acceptable. Many questions were asked out of the way in science and social studies exam especially in set 2. All the sets should be made of same difficulty level. Its unfair. Students who got set 2 repeatedly one after another in all the subjects, they are being disadvantaged. Now nothing can be done. But it's requested to cbse from all the students & parents of children who got set 2 to give them relief by giving grace marks or by adopting leniency in checking their set. Please make sure.