Can't recall which film or films are these:

1) All three, Padmini-Ragini-Laltha, known as Travancore sisters, acted in one Hindi film together. Which film is it ??
It's a late 1950s or early 1960s film.
I was thinking of Aashiq, but it does not appear to be this film.
IMDB does not list Padmini's sisters in its credits. IMDB has lots of info but does not have all the info for all the films. Moreover, in IMDB listings for Ragini and Lalitha I don't find any name that could be this film.

2) Around same time, there was one film that had all dialogs (or most of it) in poetry. Which film was this ?? I thought of Saaranga, but this does not seem to be.

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I faintly recall asking this or similar Q before but could not find the thread ?? If someone comes across it, please mark it and we can merge the topic.