Short answer: No, not officially.
As of 2026, there is no commercially released 4K Blu-ray disc or verified 4K stream of Billa (2007) from any major platform like Netflix, Amazon Prime Video, or Sun NXT. billa movie 4k
Why? Most Tamil films from the mid-2000s were shot on 35mm film or early digital cameras, but their post-production and mastering were done in 2K (1080p) at best. Creating a true 4K version would require re-scanning the original film negatives and completely redoing color grading and VFX—an expensive process that hasn’t happened for Billa yet. Short answer: No, not officially
Some enthusiast forums (e.g., Tamil Blu-ray communities on Reddit or Telegram) have created their own AI upscales using Topaz Video AI or similar tools. While not official, a well-made upscale from a Blu-ray source can look surprisingly good on a 4K screen—better than streaming 1080p. However: Most Tamil films from the mid-2000s were shot
Sun NXT also offers the film in HD. Check your local library. Quality is comparable to Amazon, though bitrate may be slightly lower.