@raju Kumar You may be charged for inbound/outbound data transfer by Azure or not based on the plan that you have. If you have metered plan, All inbound data transfer is free of charge, and all outbound data transfer is charged based on a pre-determined rate (listed below). Users are also charged a fixed monthly port fee (based on High Availability dual ports).
If you have Unlimited Data Plan, All inbound and outbound data transfer is free of charge. Users are charged a single fixed monthly port fee (based on High Availability dual ports).
Please try out the Pricing Calculator to get an estimate of the price or you can reach out to expressroutedirect@microsoft.com and provide your information for more details. I hope this helps.
Please let us know if you have any further questions and we will be glad to assist you further. Thank you!
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