Hello sujay257,
For help with a third-party products compatibility, we recommend you reach out to the manufacture for assistance. Contact a third-party vendor - Apple Support
Alternatively, you can connect a controller to use with your iPad Pro. View the steps below and additional requirements here: Connect a wireless game controller to your Apple device
"Pair and connect a controller
Instructions for PlayStation game controllers and Xbox game controllers are available, but the general steps are the same for all Bluetooth game controllers that can be paired with a computer or mobile phone.
- Press and hold the appropriate button or buttons on the controller to put it into pairing mode. This makes it discoverable by your Apple device. Check your controller's documentation for setup details specific to pairing with a computer or mobile phone.
- Open Bluetooth settings on your Apple device, then select the controller from the list of nearby devices."
Best.