Who is this cursed immortal man whom Krishna cursed to live forever?

The cursed immortal man referred to is Vyasadeva, also known as Vedavyasa. In various Hindu texts, it is said that he was cursed by Lord Krishna to live until the end of the Kali Yuga, the current age of strife and discord, as a consequence of his actions. This curse symbolizes the eternal struggle between good and evil, reflecting the themes often found in Hindu mythology. Vyasadeva is also credited with compiling the Vedas and writing the Mahabharata, which includes the Bhagavad Gita.