Arpit Chauhan AIR-20 UPSC CSE 2021 PSIR Strategy. Hello everyone. I have given a TOPPERS TALK at Vision IAS that has now been released. In this 3hr 20min long video, I have tried to share my strategy for various stages of the exam as well as different GS/optional papers along with taking certain doubts from the students. Essay, GS, optional, prelims, notes making, answer writing have been comprehensively covered. This is the closest assessment of my strategy on my own and a better way of giving back to the aspirant community in both practical and motivational terms. I hope any aspirant preparing for the exam would be able to draw certain DOs & DONTs from this that would take them a step closer to their destination. Thank you! https://www.youtube.com/watch?v=hAsM3Z5HgrA&t=7737s PSIR (POLITICAL SCIENCE & INTERNATIONAL RELATIONS) Hello Everyone!! Many of you have asked me regarding my optional strategy. So, here is something. My optional subject was PSIR (POLITICAL ...