MIUI 12.0.5 : Facing issues with notification sound (both custom and default ringtones)

I am facing issues in MIUI version 12.0.5(Redmi Note 7 Pro) for the app I am developing.

The application is not giving any sound for push notifications by default. However once I enable the sound in notification settings, it works fine.

But my main problem is that I would prefer to enable the sound by default and not make my users switch it on manually, as it might not be something easy/preferable for all users.

Is there a way to enable the notification sound by deafult and not force users to do it manually?

Thanks in advance, for any responses.

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