SAP

go for FICO module. It is must. Also u can go for FA module in addition to FICO.

Thanks for reply

Can you tell which instiute is best for sap course

(am basically from chennai)

I want  to know complete knowledgw about sap course.Please tell me complete informance about sap course like fee and best college.

Before choosing ERP be sure of one thing that you'll be drifting away from core CA...you'll be a functional consultant...

You will have more opportunities when SAP Consultant with CA. For SAP, you can go for FICO, MM modules.