Samsung Galaxy A5 (2016) and Galaxy A7 (2016) have started receiving Android 7.0 Nougat update in India. The rollout of the latest Android OS update started for Galaxy A5 (2016) in Russia earlier this month.
The update weighs over 970MB and is being rolled out over-the-air. Users in India can head to Settings » About Device menu to download Nougat. It may take some time before it hits your device. Both the phones were launched in India last year in 2016.