After giving the paper I realized the following point are a must to remember ,although these were the strategies that I followed, but I am sure this will really help you as well.

Read each question carefully and give it your best try.

If you get it, it's great. If not, move on to the next. Do not stick to it just because it is from your strong topic.

Keep simultaneously marking the answers in the answer sheet.

Sometimes, if you do it in the end, a small error can lead  to marking them all wrong; for example, if you missed one answer in between, then all the next will be marked wrong.

Refrain from blind flukes. Follow the rule-out strategy.

Manage your time such that you are able to attempt the complete question paper at least once.

Do not just leave a question just because it is from one of your weak topics. It may be an easy one.

The larger weight carrying questions are definitely important so need to be attempted seriously, but it does not mean     that the smaller weight carrying questions be neglected. The idea is to do whatever one knows.

In the end, check that you have marked all the questions you wanted to, correctly.

Even if you do not get continuously three-four question, may be it were only the first few that were not yours. Each     question should be attempted with a fresh mind-set. You should not lose out a question just because the earlier question was not solved. All of these are "independent events"! If not, make them !

Do not look around to check what others are doing. Just concentrate on your own paper.

During the paper, remember this is the time you have worked hard all year long and you cannot lose out just because  the day was not yours or just because the first 4 questions were tough or just because your friend did better then you or   just because you did not do the last paper well or just because you were not getting an easy question or anything for   that matter.

BUT, at the same time remember that this is not the end of it. You just need to give it your best. If you get it, it's good  otherwise there is another place for you. Be happy that you tried.