I am not sure if this is the right place to post but or if it a repost(tried searching but no result here and sorry I if it is a repost.),
I am just sharing a tool that I found online to root the Karbonn A27+.
Just enable USB Debugging Mode and connect the phone to your PC and let it install all the drivers.
Then just click on "Next" on the GUI.
It installs a KinguserApk in English which allows for root permissions and changing it to SuperSU does not work and I loose root.
Hope this helps.