Hi @Litty Kuriakose ,please go through below links, it might help. Thank you.
https://learn.microsoft.com/en-us/azure/cosmos-db/cosmosdb-monitor-resource-logs
https://medium.com/codex/azure-cosmos-db-the-power-of-logs-troubleshooting-64b619170d63
https://stackoverflow.com/questions/59808079/read-log-files-in-cosmos-db
https://stackoverflow.com/questions/59246715/log-the-conversation-to-azure-cosmosdb-with-nodejs