The "free" versions are often CAM rips (recorded in a theater with a cell phone) or heavily compressed files. You will not get the true cinematic experience of Rajinikanth's mannerisms or A. R. Rahman's 5.1 surround sound.
You can download or stream "Padayappa" from various online platforms, such as Amazon Prime Video, YouTube, or Google Play Movies & TV. However, ensure that you access the content from a legitimate source to support the creators and respect copyright laws. Padayappa Download Movie Tamil