Since it's not Satish's office but a public bank, I think its obvious to know the address .. or she could have asked someone .. I bet even creatives don't know loll .. but m sure we wdn't liked it if they showed..
^^^ But there are several public banks and each bank has many branches. So, there's no plausible way for Savita to know exactly in WHICH branch of which bank Satish's office is (even if she knows all the addresses of all the banks😆).