Public Administration Optional in UPSC is considered easy and also it does not take much time to cover the entire syllabus of the public administration. The subject is also considered quite scoring and the success rate of public administration is also relatively high when compared to the other subjects. Therefore, if you are looking for the best optional subject then without even a single doubt you can go for public administration but read the syllabus at least once to understand the nature of the subject as per your learning capability.