Looking up "Son Of Satyamurthy Filmyzilla", I see that it's often listed on Filmyzilla.com with no official info elsewhere. That makes me think it's a fake title used by torrent sites to get traffic. Filmyzilla is known for pirating movies, so using fake titles is a common tactic. The name "Son Of Satyamurthy" might be mixing real names with a fake one—maybe they took a director's name or a character from a movie and added "Filmyzilla" to it.