A version that has been upscaled to 4K or 1080p with "fixed" aspect ratios for modern smart TVs.
The short answer is
However, the official Blu-ray and streaming versions have long been criticized for technical flaws—enter the "Fixed" phenomenon. tamilgun enthiran 20 fixed
likely refers to a community-driven patch list. One anonymous tracker user probably released a version labeled "Enthiran.2010.20.Fixes.REPACK.Tamilgun.mkv" claiming to have corrected 20 of the most glaring errors. A version that has been upscaled to 4K