300mb movies refer to films that are compressed to a size of approximately 300 megabytes (MB). This is often done to make it easier to download or share files, especially for those with slower internet connections.
That being said, here are some points to consider:
South Hindi dubbed movies refer to films produced in South Indian languages (such as Tamil, Telugu, Malayalam, or Kannada) that have been dubbed into Hindi. These movies are often popular among audiences who prefer to watch films in Hindi.