Hi Abhishek, 

I have no first hand experience with this but I would advise to start your journey with the database connector..  I think that should work for basic queries. But it will take some puzzle work. 

Using the database connector

• https://marketplace.mendix.com/link/component/2888
• https://docs.mendix.com/appstore/connectors/database-connector/#links

And the correct JDBC driver

• https://hevodata.com/learn/mongodb-jdbc/
• https://www.mongodb.com/docs/atlas/data-federation/query/sql/drivers/jdbc/connect/

Jacob