Hi,
I have attached a sample beamer template in which I was able to get my desired background in a much easier way.
I have used
\usebackgroundtemplate
command to include a custom background created by me from Visio software (and converted to pdf). Using this approach, there is infinite possibility to create custom beamer templates of our choice.
Note that if you want additional information like info lines you can use the well known beamer commands to include in this template.
Regards
karthick