Wth is wrong with CBSE?

Can someone please tell me why CBSE is doing this to us, giving every exam hard and tough, barely coming anything from the NCERT too (except SST). I'm a grade 10 student and this behavior is unacceptable from CBSE towards us. This anger inside me increased after i saw 12th grade's Physics paper and my own Maths paper (even though I'm Basic Maths). If we all write a formal email to CBSE, we can force them to make the necessary changes towards our demands. Everybody who agrees with me, cooperate with me. Let me know if you need the exact correct email so you can just copy and paste.