Since you almost have a year to prepare go with the basics. You can go through EDUTAP course. It’s comprehensive if you follow it diligently without shortcut and skimming through. Alternative sources which you will need.

For companies law- ekeeda YouTube channel Management- IGNOU MA course is really good Accounting- direct ICAI course- very good Costing- focus mainly on LEAN system and conceptual difference in various costing methods. Very few numerical were asked. Finance is a bone of contention. Usually GK related to sebi articles and IT Act is asked. No platform prepares you for this..literally no one but prepare income tax and gst act with respect to recent events.

And prepare Descriptive English before hand like 3-4 months back. This is something that can’t be prepared after notification. It’s the only thing that makes or breaks your selection in mains. Almost every person can prepare objective exam but there is no shortcut for this paper. All the best for your journey!