Mohana Sundaram is a 1951 Indian Tamil-language crime thriller film directed and written by A. T. Krishnaswamy, serving as an adaptation of J. R. Rangaraju's detective novel.
The film stars T. R. Mahalingam and S. Varalakshmi in the lead roles and was released on 21 July 1951.
The soundtrack features music composed by T. G. Lingappa, with lyrics penned by K. D. Santhanam. Notably, the westernised song "Hello My Dear Darling", containing many English words, attracted considerable attention.
