Hi Farhan,
You want a website build in C#. And working knowledge of Enterprise resource planning. We have dedicated team on .NET they can work on this website.
I have one quick question for you:
Why don't we use PHP or any other User friendly platform of development this website?
Please have a further discussion with us so that we can understand the exact requirement of your project/website.
Looking forward for your response!
Regards,
Akn