How to add different branch address on invoice?

Go to Settings > Company Settings.

There you need to type address like this:

Branch1: 16-17 L Block, Connaught Place, New Delhi<br>Branch2: SH26, Square Mall, Alwar Bypass, Rajasthan

• <BR> will add new line

If you want to make it bold, you can type like this:

<B>Branch1:</B> 16-17 L Block, Connaught Place, New Delhi<br><B>Branch2:</B> SH26, Square Mall, Alwar Bypass, Rajasthan

• <BR> will add new line
• <B> and </B> will make it bold