I have recently got the free study material from Rau’s online mode of learning, The free material which I got is the pdf form of the prelims compass booklet and also the pdf form of the current affairs videos which is very helpful for my ias prelims exam preparations.For more details, you can click on the link-https://elearn.rauias.com/mains-test-series/mts-qip-2020-focused/5dcbc0547737d42fa536d04c/