Hi @Amitkumar Bhatt ,
To fetch the meeting Rooms in V1.0 you can use this endpoint https://graph.microsoft.com/v1.0/places/microsoft.graph.room
to get all the rooms available.
To get the specific room you can use this endpoint https://graph.microsoft.com/v1.0/places/{meeting-room-id}
Reference - MS Documentation to get Place, MS Documentation to list Place
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