Its my creative mind speaking….
This is what I think…There are 4 women in the house out of which 3 are threat to Brahma's reputation
2 Priya who blamed him for molestation and wife of his loyal son. He can't kill her either as if he does then Adi may suspect him and go for the investigation which will reveal the truth.
3 Uttara most important but weak link. She does not have any evidence of Brahma's truth as she herself is the evidence. If she speaks then the case will be totally topsy and turvy. To save himself he will kill her or she may get killed in some accident……..Nobody will suspect him instead suspicision will point to Dev.
This is what I think should happen ….
Uttara on death bed….She is looking at Brahma with disgust….Folding hand to say sorry to her Di……….Looking at Priya with guilt…………and at Adi with sympathy……words coming out her…"sorry Di….Tara ka khyaal rakhana………Adi, tumhari maa…bekas…." And then bang she is dead…….leaving Adi confused. Why she said sorry to his mother? Why she asked his mother to take care of her daughter? And why not his father or he himself? What was that incomplete work "bekas" did she mean bekasur????
What ya think?