Huawei is rolling out the Android 6.0 Marshmallow for the Honor 7 in India.
But there is a small catch.
Users who wish to download the update must register for the company’s OTA Update program. This isn’t a bad thing considering you get the update.
How to get the Android 6.0 Marshmallow on Honor 7:
1. Visit the update request page on Google Docs and fill up the form given there.
2.It requires you to enter your IMEI number, to find it dial *#06#, and also the current software version, which you can find from Settings > About Phone.
3. Hit the submit button, and you should get the update in 24-48 hours.
source: Android Central