Top critical review
Unnecessary for a GS student
Reviewed in India on 21 May 2019
Unnecessary book for just general studies. Too much details, totally irrelevant for a GS student.
I'm not sure how good is it for PSIR optional. But please don't waste your money and most importantly your time in case you're going to refer only for GS portion.
The author is himself a faculty at VajiRam and Ravi. And that's why he just indirectly forces you to buy this book. Trust me not even one page is relevant for GS.
All the best! Peace!!