The title Secretly Greatly refers to the spies’ lives. They are "great" in their skills, but "secretly" great in their humanity. The Hindi version captures this through the relationship between Ryu-hwan and the village mother, Mrs. Kim.
In one heartbreaking scene, Mrs. Kim (who doesn’t know he is a spy) slaps him for being a "useless fool," then hugs him and says, "Beta, agar tu real mein pagal hai, toh duniya ke sabse achhe insaan hai" (Son, if you are truly mad, then you are the best person in the world). The Hindi word Beta (son) is a cultural atom bomb. It instantly creates a filial bond. Secretly Greatly In Hindi
When Ryu-hwan eventually has to abandon her, the tragedy is not about North vs. South. It is about the loss of identity. He realizes he is no longer the cold soldier from Pyongyang; he has become the foolish son of a South Korean grocery store owner. The Hindi dub excels here, using the intimate "Tum" and "Aap" to denote the shifting emotional distance. The title Secretly Greatly refers to the spies’ lives
In the second half, Ryu-hwan writes a letter to his mother (who he believes is dead, but actually lives in the South). The Hindi translation of his final diary entry is devastating: "Main ek achha ladka aur ek achha spy tha. Maaf kar do." (I was a good boy and a good spy. Please forgive me.) The Hindi word Beta (son) is a cultural atom bomb
Kim Soo-hyun is a household name in India due to the massive success of My Love from the Star (Hindi-dubbed version aired on Zee Cafe and other channels). When Indian fans search for Kim Soo-hyun’s other works, Secretly Greatly tops the list. Watching him switch from a lovable fool to a deadly assassin in the same movie is a treat that Hindi audiences crave.