What is "chitthi"

Chitthi (English: Aunt) is a 1966 Indian Tamil film, directed by K. S. Gopalakrishnan. The film stars M. R. Radha, Padmini, R. Muthuraman and Nagesh in lead roles. The film had musical score by M. S. Viswanathan. The film was remade in Hindi as Aurat, in Malayalam as Achante Bharya and in Telugu as Pinni.