Here is my ingress:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: 8link-app-kubernetes-ingress
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/use-regex: "true"
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: link8.in
    http:
      paths:
      - backend:
          service:
            name: link8-app-prod-svc
            port:
              number: 80
        path: /
        pathType: Prefix
  - host: test.link8.in
    http:
      paths:
      - backend:
          service:
            name: link8-app-prod-svc
            port:
              number: 80
        path: /
        pathType: Prefix

In the above ingress, I have the same Front-end service which is defined to be run on both Domain and sub-domain (for the testing), it is working for sub-domain but not for the domain.

I get Error 404 on domain path:

Following is my DNS settings, where value is my Ingress Address:

UPDATE: