Central Board Of Secondary Education [CBSE] — difficult questions asked in set 2 (class 10)

I appeared for cbse board exams of class 10 and i found that there were many difficult questions asked in set 2 in science and social science subject as compared to other sets. Please give grace marks to the students who got set 2. Please. And also let us know if there is any action taken or not? It's highly requested to all the cbse authorities. Don't play with the life of students. Please. We prepared so hard so that we can achieve good marks but after seeing variations in the sets, our desires are broken.