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Kaavalkaaran (transl. Protector) is a 1967 Indian Tamil-language spy action film, directed by P. Neelakantan and produced and co-written by R. M. Veerappan. The film stars M. G. Ramachandran and Jayalalithaa, with M. N. Nambiar, S. A. Ashokan, Sivakumar and Nagesh in supporting roles. It was released on 7 September 1967 and became a major success. The film was remade in Hindi as Rakhwala (1971).