Hey there, GUMMALLA SOHITH REDDY
Thanks for the additional information. If you have signed up for the Azure free trial subscription, it should have applied the subscription and created a tenant. The final question I have is, do you see your tenant when you sign into your account here: https://portal.azure.com/#settings/directory
If you do not see a tenant listed, please make sure you are signing into the correct account. When I sign in on my test account, that is not a member of a tenant, this is what I see.

Whereas, if you are apart of a tenant, you should see your tenants listed in the table under directory name. If you are apart of two or more, then you will need to switch to each one to see if the subscription is listed on there.
Thanks,
Nathan