Conscious not to spoil too much, Krishnakumar reveals that even though GD Naidu is primarily known for his innovations, the film focuses on a different aspect of the man. Speaking about the inspiration behind the film, the director says, “GD Naidu’s son, GD Gopal, collaborated with author Sivasankari for a book about his father, titled Appa. I had read the book, but I also met and spoke to GD Gopal and their family as well. Their narration and recollections about GD Naidu were the primary influence for this film.” While the film charts the extraordinary journey of GD Naidu, including...