The update only contains June 2017 security patch, and it doesn't bring any new features whatsoever. While this update would have been more exciting if it had brought Nougat 7.1.1, which is already available for few Moto devices.
The update is already rolling out to the users of Moto G4 Plus in India. If you did not receive the update wait for few days or try checking for it manually by heading over to system updates section in the Settings app.
Motorola’s instructions explain that for a successful installation, the battery in your phone should be at least 50% charged and your device should be connected to a Wi-Fi network or LTE.