Hi @Paritosh Mishra Thank you for posting your question at Microsoft Q&A forum. Happy to assist!
I understand your concern about cost analysis showing high cost for a particular resource group (Untagged resources). Please add a filter and group by resource. Not all services emit tags. Reference doc - https://learn.microsoft.com/en-us/azure/cost-management-billing/costs/understand-cost-mgt-data#how-tags-are-used-in-cost-and-usage-data
Hope this helps!
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