Bidaii = Othello... (or omkara)

Vasu is Iago, Sadi is Othello's lady, and Ragi is Othello. Even thought in Othello, the two are lovers, instead in Bidai the two are sisters who love eachother dearly. Just like in Othello, where Iago tears the lovers apart by casting doubts upon Othello against his wife, Vasu casts doubt upon Ragini against Sadi. In the end of Othello, Othello kills his wife, comparable to Ragini abandoning Sadhna. That abandonment is painful like murder, becuase Ragi was everything to Sadhna. But in the end when the truth came out, Iago was punished, and Othello, repented for murdering his wife by taking his life. Obviosly Ragini will not kill herself, but instead she will beg to be forgiven since Sadhna is still alive... The thing that does Iago in, is that he is betrayed by his own wife. So probably, Vasu's evil plot will be revealed by another family member (either Alekh, or Ranvir) Iago(vasu) did it becuase he believed that Othello had an affair with his wife.. \While Vasu is against Sadi because she is blamed for Ranvir's jail sentence. So it would come full circle if Ranvir turns things around.