Latest Update->There is now latest release of SuperSU is available for download.It is dubbed as SuperSU 2.56.This one avoids mounting your system partition, meaning no modification are made to it.This helps you keep your device ready for OTA updates, which require that no modifications are made to the system partition.We share all direct links below.You can easily Download SuperSU 2.56 from the given links
When that process is finished, you'll be taken to TWRP's main menu. Tap the "Install" button here and use the file browser to select the SuperSU-2.56.zip file that you downloaded in Step 3, then swipe the slider at the bottom of the screen to flash the file.