Hi All,
Thanks for all your response.
Issue is resolved without using the HostReconnect.pl script. I have followed the below steps and now all the ESXi hosts are showing normal HA status.
1) Put the host in Maintenance Mode. Disconnect and remove it from vCenter server.
2) Restart the Management Agent through DCUI.
3) Uninstalled the HA agent using command line.
4) Add the host again in Cluster.
5) Exit from Maintenance Mode.
By Following these steps - successfully configured the HA on all the four ESXi hosts. Now one host is showing as Master and rest three hosts are showing as Slave HA status.
Regards,
KC