HI Jagadeesh,
Your question is too generic, So answer would be generic as well.
SAP Has different modules and solutions related to Banking.
The usual way of any Bank implementing SAP for their Banking services is not just SAP Banking.
Customers would be handled using SAP CRM
Banking would be handled using SAP Banking Services
Money movement would be handled using SAP ERP(FS-CD)
FSCD is a sub module in SAP ERP (Financial Services collection and disbursement). This system is used for Payment engines in layman terms (it is a system to take the money from one account and debit in another account)
Almost all the banks who got SAP Banking Services will be implemented SAP CRM and FS-CD for sure. I work for Standard Bank of South Africa as a Technical Specialist and this is the first bank in African Continent who implemented SAP Banking Services as their Bankend System. Standard Bank also have branches in UK, Mauritius and have SAP Banking as well but the front end is not Java, it is SAP EP, but the rest all CRM, FS-CD everything remains same. You have options of writing certification on SAP Banking Services or CRM or FS-CD(FS-CD is a component of SAP Insurance). Then you have some more specializations in SAP Banking like Loans Management, Order management, Payment Engines etc..)
Hope this information is useful.
