Hii aspirant ,

Coming to your question I would like to tell you that this thing happens with most of the students and this created a difference between the topper and the normal studentso I will suggest you that whatever you study just repeat it daily , and in the week just revise the whole content that you studied in a particular week by doing this you will be get in a regular touch of the topic and the thing which you will study will last long in your mind ,

Hope this helps you , good luck.

Hello aspirant

As per your query.you have to revised a topic many times to understand it properly and make a short notes.for that you can easily revised a  subject.

Thanku