This is a very intresting topic "How to obtain good marks in exams" for all students. Hard working is another thing, but every desire can not be aquired by hard working. Wisdom is another thing that makes possible every thing in this world. Understanding is an another thing which creates a creativity that gives way to go ahead. There are some points which can be done in special manner to obtain good marks. These are as follows.
Understanding topics and terms.
Practicing topics and terms in that way by which you have understood.
Try to remind them after 2 to 3 days of interval.
Build your memory.
Understanding topics and terms of a subject is very important otherwiase it can not be learnt in right manner, whenever you can forget in exams. Because you have only learnt not understood.