Central Board Of Secondary Education [CBSE] — Applied mathematics having very tuff calculations for class 12th

This is to let you guys know that students of class 12 applied mathematics are facing a problem regarding the subject. It have very tuff calculations which is time wasting or students. And a wast syllabus with most of them having these kind of calculation. Which makes it more difficult... This is not only me facing these kind of problems there are lot of students in my town or my freind Circle facing these problems.. so, it's a humble request to CBSE to either allow calculators to examination hall or make the calculations a bit easy..
And the applied maths don't have any official printed book for it... With reference to the pdf having less questions and rest reference books have very difficult calculations