Hi everyone, I want to prepare Economy for CSE 2018 and I have heard that Mrunal is the best free resource available. He has 85 + lectures in his 2015 original lecture series and then he also has lecture series for 2016 Economic Survey. He has also made a new series for 2017 and has said that he will upload the complete series by Prelims 2017. He also mentioned in one of his articles that the new study material will replace the old one.
So I would be really grateful if anyone could guide me on how to use Mrunal for the preparation. I would like to know in which order should one watch his videos and will the older videos be relevant for future exams. Moreover a lot of the articles posted on his website are 3-4 years old, so are they still relevant or should be avoided?