I had cleared my CA Final by self study in May 2018 exam.
I have also written on how to prepare various subjects by self study
Links are as follows:
For Audit: https://www.caclubindia.com/articles/how-to-study-audit-in-ca-exam--33227.asp
For DT: https://www.caclubindia.com/articles/how-to-do-self-study-for-dt-in-ca-final-33908.asp
For Costing: https://www.caclubindia.com/articles/how-to-study-costing-for-ca-exam--33508.asp
And everything in summarized form is summed up in the article mentioned below
https://shobhitsjain.wordpress.com/2018/10/21/how-i-cleared-my-ca-final-by-self-study/
CAclubindia
