Access media files on NTFS formatted USB OTG drive (preferably without rooting)
You could use the workaround I mentioned in MIUI forum, to use a pendrive with a NTFS format, needing no root.
To do that you need a some custom OTG drives which are bundled in some File manager apps such as MiXplorer.

The Custom USB OTG driver works well this these additional
filesystems: FAT32 (R/W), exFat(R/W), NTFS (R).
Simply open the app,
tap on the three dot menu → More settings → Enable Custom driver for
USB OTG (tick the box to enable)
Done, now insert you OTG cable and
place the pendrive on the port.