Hello,
As you said yesterday you're interested to take up BA Political Science, you can go ahead with this choice, in fact it's a really great option to help you not only in GS Paper but even in optional, so you can definitely go ahead with this choice. When it comes to UPSC preparation, the early you start the better it's when it comes to preparation, you can start in a gradual manner like first of all take a print of UPSC syllabus and learn it by heart, the reason because it's only when you know the minute details, you'll be able to understand what to read and skip, secondly develop the habit of newspaper reading on a daily basis, the best choice is The Hindu or The Indian Express, put a more emphasis on editorial parts, this will help you in answer writing in future. If you have any other queries related to UPSC exam, you can ask me in the comment box,
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