Elan (Elaan), 1947
Director: Zia Sarhadi
Music Director: Naushad Ali
Lyrics: Zia Sarhadi
Playback: Amirbai Karnataki, Surendra, Zohrabai Ambalewali
Cast: Surendra, Munawar Sultana, Zebunisa, Himalaya, Shanawaz, Agha, W.M. Khan, Leela Mishra

English subtitles included.

The Encyclopedia of Indian Cinema says this about Elan:

Story of two half-brothers, the evil Sajjad
(Himalaywala) and the good Javed (Surendra).
Exploited since his childhood by the richer and
crueller branch of the family, represented by
Sajjad and his mother (Zebunissa), Javed loses
his beloved (Munawar Sultana), bought by
Sajjad’s family wealth. The fortunes of the two
brothers change: Sajjad gambles away his
wealth while Javed becomes a noted lawyer. In
a fit of desperation, Sajjad wants to kill his son
but is himself killed by his mother. His widow
turns down Javed’s offer of marriage and
instead starts a school in her family palace,
partly to make amends for the family’s vile
behaviour. This was Mehboob’s most stylised
Muslim social with quasi-expressionist acting
enhanced by an ornate decor and Irani’s
heavily shaded camerawork. The final song,
Insaan ki tarkeeb, carried the film’s anti-feudal
message, addressed to the camera by a purdah-
clad Munawar Sultana.