The new B330 Android 6.0 Marshmallow update for the Honor 7 (PLK-UL00IN) officially pushed out online by Huawei India.
Please do follow the guide below to download the update and install it yourself.
Also Ckeck Out Download Huawei Stock Firmware For All Model
How to Flash the Marshmallow 6.0 B330 Firmware On Your Huawei Honor 7 (UL00)
Download Marshmallow 6.0 B330 Firmware
1- Unpack the firmware package on your computer.
2- Transfer the extracted dload folder to your phone’s microSD card.
3- Take a backup of your important stuff using Huawei’s native app.
4- Safely unplug the USB cable and turn your phone off.
5- Reboot while holding Vol Up + Vol down + Power for a few seconds. Release Power upon vibration.
6- Once the upgrade starts let go of the volume keys and allow the installation to proceed.
Your Huawei Honor 7 (UL00) should now have Marshmallow 6.0 on your phone! Go to Settings > About phone to verify.