Hi, @kartik2_1 .
Thank you for following up with the additional context.
As there are two different cash on delivery payment methods available on Shopify and if you’re unable to resolve this problem, then it looks like we’ll need to access your account in order to get a closer look and resolve the issue. While we’re unable to provide account-specific support via the Shopify Community, we’d be happy to further assist you through live chats. Simply visit the Shopify Help Center and login to your account to create a support request.
Once you’ve resolved this issue with our Support team, I’d love to hear more about your business and share some resources since you’re a new member of our Shopify Community! What types of products are you selling? Do you have a marketing plan prepared for your store?