Missamma - Telugu, 1955
Director: L.V. Prasad
Music Directors:  Saluri Rajeswara Rao
Lyrics: Pingali Nagendra Rao, Thyagaraja Kruthi
Playback: Raja A.M., Leela P., Ghantasala Venkateswara Rao, P. Susheela, Relangi Venkatramaiah
Cast:
    N.T. Rama Rao ... M. T. Rao (as Taraka Rama Rao Nandamuri)
    Savitri ... Mary / Mahalakshmi
    Akkineni Nageshwara Rao ... A.K. Raju
    S.V. Ranga Rao ... Gopalam
    Relangi Venkatramaiah ... Devayya
    Jamuna ... Sita
    Rushyendramani ... Gopalam's wife
    Allu Ramalingaiah ... Musali Panthulu
    Ramana Reddy ... David
    Doraiswamy ... Mary Pempudu thandri
    Gummadi ... Employer (guest role)

The Encyclopedia of Indian Cinema says this about Missamma:

   Hit comedy about a village zamindar (Ranga
Rao) who advertises for a married couple to
run a school set up in memory of his long-lost
daughter. The unemployed Rao (NTR)
and Mary (Savitri) pretend to be married to get
the job. Annoyed by Rao’s interest in the
zamindar’s other daughter (Jamuna in her
debut), Mary starts teaching music to an
amateur detective and the zamindar’s future
son-in-law (Nageshwara Rao).
   Mary feigns pregnancy while the zamindar tries
to convert her to Hinduism. Eventually Mary
turns out to be the zamindar’s lost daughter
and she marries Rao. The Ghantasala/P.
Susheela duet Varaya vennilave was especially
popular. The film adapts Jyotish Bannerjee’s 
classic Bengali comedy Manmoyee Girls’ School 
(1935). Prasad remade his own version at the 
AVM Studio in Hindi as Miss Mary (1957) 
starring Meena Kumari. Anant Mane also did a 
Marathiversion of the story, Jhakli Mooth (1957).

The 1957 Hindi remake - Miss Mary - is found in this channel here:
https://www.youtube.com/watch?v=utcGlxq6hiw