Gaali was a film with a strange story of a young blind widow,who thinks that her husband comes and talks to her.
Mangala (Nirmala) loses her husband soon after marriage and she also becomes blind,without any medical reason. She stays with her Father in law Jagat narayan Chakrawarty who also has an unmarried daughter lali (Manju Dewan). One day he meets Tilak,son of a zamindar from nearby village. He wants Tilak(Karan Dewan) to marry his daughter Lali,but surprisingly,Tilak starts getting attracted by Mangala. She also talks to him and imagins as if her husband is talking to her.
This is made use of by a village ruffian and people attack Jagat's house demanding that the friendship of Tilak and Mangla be stopped. In the melee,jagat gets killed. At the same time Mangala and Tilak are in a Temple getting intimate. Suddenly her eyesight comes back and she realises the truth that it is not her husband.
Finally,Tilak marries Lali and mangala becomes a Sadhwi in a temple for rest of her life.