Looks like Samsung Galaxy J7 Prime users are started to receive Android 7.0 Nougat update in India. It has been confirmed by the user who posted the update screenshot on twitter. As per the image, the software update for J7 Prime arrives in new version G610FDDU1BQH9. Well the download size is also  big 1143.09 MB (1.1GB).

Android Nougat for J7 Prime brings redesigned UX, multi window mode, notification enhancements, customizable quick settings icons, newly added dual messenger feature, tweaks the speed of system upgrade & apps installation and more are there. After installing the update if you face any app compatibility issues, try to update the apps to its latest version. This nougat update is rolling out as OTA for J7 Prime. Because of the stage roll out it will take some time to reach all devices. You can also trigger the update manually from settings menu.