Hi @kamalkumar. Thanks for being part of GoDaddy Community! I'm not sure why you'd be having difficulty with this. Keep in mind setting up a CNAME won't redirect the URL but will load the page at the URL without redirecting. If you want to redirect, you could set up a forwarded subdomain. If you can share the actual domains and URLs involved, others may be able to offer additional suggestions if you're still having problems.
JesseW - GoDaddy | Community Manager | 24/7 support available at x.co/247support | Remember to choose a solution and give kudos.