UPSC Prelim Topic wise question app provides All the question of previous year from 2010 .
These questions are arranged in Topic Wise manner.
With detailed explanation to the Answer
Going through the last year papers will familiarize you with the kind of questions asked in the examination.
One thing you have to understand here is that UPSC will NEVER repeat a question, for IAS exam.
So don’t mug up questions. It’ll be of no use.
What will be of use is the fact that the ‘type’ of question might get repeated.