Hi @Sharath Kora,
Thanks for contacting Microsoft Q&A platform.
If multiple VMs are being deployed, then you can expect a cost per Virtual Machine.
I would recommend checking your resources, what VMs are being deployed, and check the Cost analysis (watch it for an expense report).
For more information I would check your machines SKU on:
https://azure.microsoft.com/en-ca/pricing/details/virtual-machines/windows/
Hope this helps you.