One of my senior guided me in these words to secure good marks.
1. Regular in studies
2. More rely on important questions.
3. Overcome limitations.
4. Do more written work.
5. More focus on objective questions.
6. Art of quoting.
7. Difference between relevant and irrelevant material.
8. Go for high scoring subjects.
9. Don't get much advices.
10. Self belief.
11. Target study.
12. Hard work.
13. Neither overestimate nor under estimate.
14. More concentrate on English.
15. Adopt technical approach and finally failure in this exam doesn't mean end of world. Don't lose hope. Don't blame anyone not even youself. Inshallah Inshallah God almighty will give you reward of this hardwork in any other field.
There are also many other factors. Please make contribution in this list especially by respectable seniors on this forum...................