Hello Amisha, I understand that you are facing some issues try to access the Azure Portal.
Could you please share what specific message are you receiving.
In the meantime, try to follow the delete the cookies, cache and history for the URL pointing to Azure Portal.
Also we have some troubleshooting steps here: https://learn.microsoft.com/en-us/azure/cost-management-billing/troubleshoot-subscription/troubleshoot-sign-in-issue#page-hangs-in-the-loading-status
Please let me know if this was helpful, if yes accept the answer.