After Micromax and Spice, Karbonn’s Android One smartphone Sparkle V is getting Android 5.1(Lollipop) Update. The update is available Over-The-Air(OTA). Users on WiFi networks will automatically get notification.
The official change log of the update is not available at this time. The size of the update is 409.8MB. Users can check for the update manually by just going to Settings>About Phone>System Updates.
source : FoneArena