I just came to see whether this forum was still open as I had always said Beyhadh needed a retrospective viewing to understand it layers as it dealt with Maya the metaphor. So I did go back to some episodes and I am putting an analysis where I had managed to connect the hanging dots and lose hanging symbolism.
Arjun says to Saanjh in first episode what is seen with eyes doesnt happen and what happens is not seen. To everyone concerned Saanjh is seen as the most important person of Arjun's life and that includes Arjun. But Maya the girl comes and in front of Lord unknowingly keeps her feet in Saanjh's foot prints, so as per Ganesha she is the most important person of Arjun's life who will give him all that he wants.
Now let us see how this plays out. What is Arjun before meeting Maya or the so called Duffer of Dusky. An irresponsible young man, who has not completed his studies, who dreams but doesnt work hard to make those dreams come true. Is lonely as his relation with his step mom is not good. His world revolves round Dusky and Dusky alone. But none has issue of any of these habits of Arjun Sharma because you know Dusky is trying to change him, but he is not changing.
This irresponsible faltu young man who breaks rules at will and who is not disciplined is what Maya gets. She disciplines him, she brings work ethics to him, she brings him closer to his mother, she brings him out of his hospital fear, when he is accused wrongly, her teachings, her sermons, her dialogues gives him courage to fight it out and prove his innocence( In jail Arjun remembers what Maya told and based on that only he breaks the jail and fights it out, when Saanjeshwari Devi sits and cries) . Infact Saanjeswari Devi gets a sober husband, a responsible family man in which her contribution in making him that is nil.
When Arjun wanted name and fame and when he was associated with Maya everyone cried foul. But when Devi wanted child and Maya was going to give that it was fine. Remember when Arjun married Maya she was still not proven a criminal, but when Saanjh brings Maya she is a convict who had jumped jail.
Also Saanjh is so crazy for child, not satisfied with her sober husband just the way she was not happy having a loving family and a really good father Prem Mathur. And Saanjh's craziness for baby finally makes the somber, responsible Arjun into a murderer. While at the same time Maya the girl had given him name, fame, work ethics and a child everything a woman can give man. With Maya the girl he became a successful entrepreneur and a responsible family man. With the Maya called Saanjh in the beginning he was an irresponsible and arrogant Duffer and in the end he became a murderer. And yes he remained Dusky's duffer or idiot till the end not realizing this truth that Maya the girl was not the Kala saaya of his life, but the Maya called Saanjh was the Kaala Saaya of his life. He had killed the woman who gave him everything to be stranded with a woman who can give him nothing and can only crib and take whatever she wants from him.
He wanted to escape the bondage of Maya the girl, but he ended up in life long bondage of Maya called Saanjh as they share a secret that Arjun is a murderer. With Maya the girl it was always bad, if he could take his share of blame in that relation he could have had a good marriage, but with Maya called Saanjh he is the criminal, he is the duffer and to keep it floating he always will have to bend.
Arjun killed his Maya to be in the bondage of Maya forever.