I think Charu can only be played by Aishwarya or Vidya but Vidya is now a gone case who looks moti aunty. She would not suit the role now. The perfect Charu would be Aishwarya Rai Bachchan.
Fawad Khan is perfect for the role of Amal who shares a bond with his bhabi Charu. This role needs an extremely handsome actor who can match up with the beauty of Charu. Who else can play Charu other than Aishwarya? š³
Sanjay Leela Bhansali has the copyright to remake Charuata. He should direct this film instead of Bajirao Mastani.

Charulata tells the story of a lonely housewife, known as Charu (Aishwarya Rai Bachchan), who lives a wealthy, secluded and idle life in 1870's Calcutta. Her husband, Bhupati (Irrfan Khan), runs a newspaper, The Sentinel, and spends a lot more time at work than with his wife. However, he notices that Charu is lonely, and asks his cousin, Amal (Fawad Khan), to keep her company. Amal is a writer and is asked to help Charu with her own writing. However, after some time, Charu and Amal's feelings for each other move beyond those of a mentoring relationship as Charu begins a latent sexual attraction towards Amal. Amal is unwilling to betray his cousin's trust that has already suffered at the hands of Charu's swindling brother, Umapada. He abruptly leaves, and after Charu hysterically submits to her disappointment in the presence of Bhupati, there is nothing left but for the forsaken woman and her humiliated husband to forge a contrived reconciliation.
0