Statement of Purpose/Essays plays a major role in admissions. This is the only thing you can express your goals, achievements impressively to admission committee and faculty members of your area.

If more than one students have marginal score for a particular University then these are the only things that will decide admissions. The most important part of your essay is the subject matter. You should give enough time to check and re-check your subject matter.

How to do it?

1. Get Complete information of the major you are applying and details of that major in the University (you are applying).
    
2. See the facilities number of courses provided in that major. Does it matches your Interests?
    
3. If your interests research) doesn't matches you will most probably be rejected.
    
4. Some students got rejection letter stating "Your Research Interest doesn't matches with any of our Faculty member so you have been rejected".
    
5. Direct experience with your field of study is the best kind to have in your essay.
    
6. A word of caution: Do not focus solely on your research topic unless this is the standard practice of your field of study and you must outline your thesis. By over relying on your research, you risk your essay sounding impersonal.
    
7. Even if you have no formal experience, you might still have field experience that counts

Note: Don't Simply Copy Sample Essays available on Internet.

How to write Essay? Check the Following:

1. Do the first sentences express all of my main points?
    
2. Does my conclusion draw naturally from the previous paragraphs?
    
3. Does any attribute, quality, or skill distinguish you from everyone else? How did you develop this attribute?
    
4. Have I been specific? (Go on a generalities hunt. Turn the generalities into specifics.)
    
5. Could anyone else have written this essay?
    
6. What is your strongest, most unwavering personality trait?
    
7. Do you maintain strong beliefs or adhere to a philosophy?
    
8. How would your friends characterize you?
    
9. What would they write about if they were writing your admissions essay for you?
    
10. Regarding the introduction, is it personal? Is it too general? Can the essay get along without it?
     
11. What about the essay makes it memorable?

Remember successful professionals are extremely good at convincing others to invest resources in them.

Some Tips

1. Make your application easy to read.
    
2. Keep your essays to a reasonable length.
    
3. Convey a sense of focus and excitement.
    
4. Emphasize your ability and potential for
   1. Creativity
   2. Integration
   3. Research
   4. Synthesis
       
5. Get your application in early.