Paromitar Ek Din (2000)

This film is exploring the dual themes of friendship and loneliness. Sanaka and Paromita are mother and daughter-in-law who, despite differences in age, backgrounds and temperaments, build a strong bond together. But when Paromita's marriage to Sanaka's son breaks down, social mores prevent the women from remaining close friends. While Paromita remarries and begins a new life, her mother-in-law , Sanaka , is left heartbroken and alone and eventually falls seriously ill. When Paromita learns of her friend's deterioration, she is compelled to flout convention, and returns to nurse Sanaka on her deathbed.