Please do not depend only on the internet sources or website sources. Today, in every city or town, there are bazaar guides available for every subject and these are always centered around answers to the previous year's question papers.
While some of the answers might not be good from the examination point of view, or would need great improvement, at least you will have a ready made material that you can carry wherever you go. Remember, where there are power cuts, only such offline sources help us a great deal.
To give you one specific example. As you would be knowing, the Annamalai University, Tamil Nadu, conducts a huge number of Distance Education courses. Their study material is also very good. Yet, just outside the numerous study centers, or even in the very same centers, you can easily find bazaar guides for every subject -- be that sociology or Management or Economics or whatever, even at the post-=graduate level.
Am told that for so many Universities in AP and Telengana, there are bazaar guides also available, even in smaller towns. So, kindly search for such guides, as a secondary source of information, where you can save time, by looking at the answers too.