HOW TO EASILY LEARN ALL SUBJECTS IN 10 DAYS BEFORE EXAMS ?

Make a good timetable and follow it by heart.

practice makes a man perfect ,

practice,practice & practice.

Best of luck for your exams

and do well.....

dear aditya 
frst of all start with ncert , they are sufficient for your grade , no need to go beyond . 
and after that , do as much ques as u can . and analyse where u went wrong , make sure that doesnot happen twice . 
so, increase your level everyday and check your progress 
all the best 
regards