React-native Axios is working in iOS but not calling in Android

I can't seem to get the following Axios call to work on Android. It's not hitting the server and showing the error : [Error: Network Error]. The same code works on iOS. Do I have to do something special to enable network requests for Android on React Native?

 var url = 'https://***.****.com/api/list';
 axios.get(url, 
           { headers: {'Content-Type': 'application/json'}}
          ).then((response) => {
               console.log("response = ",response.data)
          })
          .catch((error) => {
              console.log("error = ", error)
          });

I got this error in console :

error = >  Error: Network Error
    at createError (index.bundle?platfor…minify=false:117949)
    at XMLHttpRequest.handleError (index.bundle?platfor…minify=false:117857)
    at XMLHttpRequest.dispatchEvent (index.bundle?platfor…&minify=false:32349)
    at XMLHttpRequest.setReadyState (index.bundle?platfor…&minify=false:31433)
    at XMLHttpRequest.__didCompleteResponse (index.bundle?platfor…&minify=false:31260)
    at index.bundle?platfor…&minify=false:31370
    at RCTDeviceEventEmitter.emit (index.bundle?platfor…e&minify=false:5652)
    at MessageQueue.__callFunction (index.bundle?platfor…e&minify=false:5080)
    at index.bundle?platfor…e&minify=false:4793
    at MessageQueue.__guard (index.bundle?platfor…e&minify=false:5034)