Greetings Rajeswari,

To prepare for any exam you need to follow some guidelines or rules that will help you to crack any exams:

1.Take out the syllabus in hand and try to identify the portions that has been covered. 

2.Prepare a daily routine for yourself.

3.Set goals everyday,dont make it to high just make sure it is achieveable and reward yourself after achieveing.

4.Try to Practise sets in time so to increase accuracy and speed both.

5.Now coming to exam,try to perform those portion in which you are strong.Dont go for lengthy questions early.

6.Last but not the least have confidence in you.

Good Luck!!

Regards Ankit!!