India is the second country to receive the new Nougat update for the Android system.
Russia was the first country who received the new system version along with a couple of changes, like better security, faster apps and other features.
It is a and OTA update which means that it might take a bit longer to arrive on your device.
If you aren't patient enough, to wait for your device to inform you about the update, you can check it manually by going to the phone settings and update it manually.