Finally, lenovo had started rolling out a system update for the Vibe K5 note series handsets. Even though they had officially announced that, no updates will be rolling out in future for K5 note, a small update is available now.
But this update does not include any upgrades to the Android version or security patches. Hope it has only a minor bug fix that currently present in the GPS system of the device.
After completing the installation, the build number will be updated to A7020a48_S401_190328_ROW.
Let us hope for a big update in near future.