First, the good news: Sony LIV and Netflix India acquired the rights to the Hindi-dubbed version of the series. All five seasons (originally aired from 2008 to 2013) are available with high-quality Hindi voiceovers. However, it is a streaming exclusive —there is no official "portable download" in the sense of a standalone MP4 file.
The official Hindi dub premiered on Zee Café in August 2023. It typically airs on weeknights at 10:00 PM IST. First, the good news: Sony LIV and Netflix