Dear expert I refer lakhmir Singh and manjit kaur.in this guide they have given notes along with questions.the notes are totally big means a small topic also contains 2-3paragraphs so it's very difficult to learn so is there any tip to learn that notes or only just by reading

Dear Student 

Its better to practice more and more question as much as you can by. As it helps you in memorising the concept and increases your writing speed. 
 
So try to write shorter notes for which you feel given in the big size. 

Consult your friends, parents, and teacher for the better help. 

Regards