Hi @Srivastava, Ishu ,
to allow more than 2 concurrent logins/RDP sessions on an Azure VM running Windows Server you need to setup an Remote Desktop Service environment: Deploy your Remote Desktop environment
For Windows 10/11 there is a special version available in Azure (to use with the Azure Virtual Desktop / AVD): Windows 10 or Windows 11 Enterprise multi-session remote desktops
(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Regards
Andreas Baumgarten