Hello @Rushyendar Akula,
You can retrieve and post data loader mappings for each entityType between environments via the below API's.
GET https://console.reltio.com/dataloader/services/dataloader/{{tenantID}}/_mappings?entityType=configuration/entityTypes/{{entityType}}
POST https://console.reltio.com/dataloader/services/dataloader/{{tenantID}}/_mapping?tenantId={{tenantID}}
Body:
**Paste the entire contents of the GET mapping response into the boy of the POST API.
Let me know if you have any other questions, thanks!

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Ashley Branham
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