Also if you have to be successful, you should select an essay topic in a field that you are doing specialization or else in the field that you have passion for. But again when you select your passion field, you should again select the topic that would have lots of contributions either to your college or else to the society through your essay writings. Of course you can also direct the writing in a way that would immediately show evidences that would fetch you in future career plans. It would be good to concentrate on the current events and topics that show you are very much active and are up to date with the current happenings in your surroundings.
Also you can concentrate on the social issues that would be a major issue for the government. The more number of feasible solutions that you provide to the social problem you have selected the more are the chances that you would get scholarship based on your essay writing. Also you can select a controversial problem at hand in college campus with the workable solution that is possible for the management in order to attain special scholarship from the college committee. Also you will have a chance of writing on essay topics that would let you project yourself and your talent in achieving certain goals that are coming up in future.
You should give a clear process that you would follow that would contain a logical sequence that will surely workout when it is implemented by anyone else. Thus you have multiple ways of selecting an essay topic that would win you scholarship.