Hi @Jacky Sinha ,
There is an issue with the Azure Portal which fails loading the subscription during the creation process of VMs since a few days for different people.
Microsoft is actively working on this at the moment.
References ( @Anonymous , @vipullag-MSFT ):
https://learn.microsoft.com/en-us/answers/questions/732559/subscription-drop-down-bar-not-loading-when-creati.html
https://learn.microsoft.com/en-us/answers/questions/732763/azure-subscription-loading-indefinitly.html
(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
---------------------------------------
Regards
Andreas Baumgarten