This method is the one most people opt-in for, since it.
If your target device has a custom firmware flash counter, CF-Auto-Root will trigger it. All version can be downloaded here: Click here Install TWRP 3.3.1-0 Recovery on Android using Fastboot.Using the incorrect file may brick your device. Use at your own risk, I’m not responsible for bricking your device. MT65724.4.2 TWRP Recovery img v3.1.0.2 for Lava iris 250 Android Device On ApBy lubikdair In Lava Leave a comment Download Latest TWRP Recovery For Lava iris 250 Device.
If you get Boot Loop after root your samsung galaxy, read this How to Fix Boot Loop After Update or Root Samsung Android Firmwares
Recently this device has received the official TWRP recovery support.
The phone came out of the box with Android 4.4.2 Kitkat and later upgrade to Android 6.0 Marshmallow.