Query on current issues

Hello Sir I am doing March 2021 SBR sitting for which i do have some queries on current issues of the syllabus. i) How can i better prepare for current issues? ii) where shall i get more details on the issues? iii) Do i need to refer the websites of the International Accounting Standards Board and the 'Big 4' accounting firms (KPMG, PwC, Deloitte, Ernst & Young) and if so what shall i look at?? Please advise.. I Just recently cleared FR with good score. So, I have not yet started preparing for SBR or AAA. So is it a wise decision if I plan to do both SBR and AAA for the coming March 2021 sitting ??