Hi Ajay,
If I understand correctly, you haven't work in SAP, just in banking domain. There are SAP for Industries specific solutions and among them there is SAP for Banking. SAP for Banking – SAP Help Portal Page
As for common modules you may be fit for Financial and Controlling FI/CO or if you have programming experience, for technical modules like ABAP or BASIS.
Explore a little..
Regards,
Vladimir