General Query about the address in passport

[tenali1]

Hi,

I am going for the L1 B(Blanket petition) visa Interview next month and I have booked a slot for the same.

I have made one error in DS156 document.
Is it possible to edit the details of DS156/157 , where I have already made the appointment.
If so, how to do that?

Can anyone please advice me on this...

Thanks in Advance