Class 1:- Percentageclick here
Class 2:- Permutation and combinationclick here
Class 3:- Ratio and proportion click here
Class 4:- Speed Distance and Timeclick here
Class 5:- Time and Workclick here
Class 6:- verbal Aptitudeclick here
Class 7:- C Programming click here
Class 8:- Logical Resoning on Cubes click here
Class 9:- Number System and coding and decoding click here
Class 10:- Direction click here
Electronics and Communication 8th sem Notes:-
click here
Note:-just click on the link