BariqWani
We can only help with application realated issues on an urgent basis. Your server issues are not under our control. Kindly contact your server admin or your hosting provider to get it resolved.
I totally understand when a production website is down, it affects the business a lot. But there's nothing we can help you in this situation, as your hosting's DNS is down.
Edit: Looks like your website is back online as your server DNS stuff has been fixed.
Closing this thread.