SAP FI Certification Via ICAI

Hi Friends,

I am currently Perusing CA (Grp 2 of CA FINAL Cleared)

I want to become a SAP FICO consultant after becoming CA

I had Few Questions

1) Should I do SAP FI/CO Certification Via ICAI or Direct ATOS or any other?

2) Do I need Both FI and CO or FI Certification is sufficient?

3) Should I get Campus Placement before Certification or after it?

4) How is the Future in this Field as compared to Other ERPs?

Thank you