Which is the easiest main subject for civil service exams?

How to choose a subject? That's one question that haunts many students who many times, loose precious time waiting for that decision to happen. Now that UPSC has done away with specific subjects at the preliminary stage, students should perhaps find it easier to get down to preprations straight away

For IAS preparation it would be good if you pursue your BA in the subjects like History, Public Adminstration , Economics , Constitution & Geography. And among these I think Geography & Public Administration are most popular optional subjects for the mains and account for the 50% shares in the final