Karnasubarner Guptodhon (lit. 'The treasure of Karnasubarn') is an Indian Bengali adventure thriller film directed by Dhrubo Banerjee and produced by Shrikant Mohta and Mahendra Soni. It is a sequel to Durgeshgorer Guptodhon and the third film in the Sona Da franchise. The film was released on 30 September 2022, coinciding with Durga Puja, under the banner of SVF Entertainment. After discovering an old riddle that talks about the hidden treasures of King Shashanka, Sona-da Subarna Sen, Abir and Jhinuk follow a perilous trail to find it. The film was a blockbuster at the box office and one of the highest grossing Bengali films of all time, earning a total of ₹9.08 crores worldwide.