If you have two accounts in SBI then you can transfer the balance from one account to another online. In this guide, I have explained how to do this in step by step.
With help of this article, you can successfully create an SBI virtual card. The article also explains what is SBi virtual card and how to cancel it.
In this article, I have explained, SBI mobile banking activation process in step by step manner so that everyone can access their accounts on mobile.