Everyone is taking decisions for Atharv without consulting him. Understandable as he currently does not have the mental faculties to make choices for himself. But that was always the right Atharv valued most: freedom. And that's exactly what has been taken from him by Sujata, by Ravish, even by Vividha - anyone complicit in keeping him locked in that room. His mind is trapped and he is physically trapped too. The Atharv we knew didn't give a crap about property or money, he especially didn't want anything to do with his father yet that's all Ravish keeps referring to when discussing his haq. Sujata's resistance wasn't nearly enough, in fact she even called a lawyer and if that wasn't for property then what was it? She can arrange for a lawyer to meet her but not a neurologist? Not an EXPERT who can improve her son's condition?
Mr Mahaan himself has made it his duty to get Vividha married to Atharv but in the meantime she has to keep playing bahu - it's an ORDER. Where is her freedom? HER choice was to walk away from the marriage, to take Atharv and Sujata home yet Ravish managed to manipulate the situation to his advantage. By FORCING her to stay there he's made her submissive, he's forcing her to witness what her choices have done to him, and making her feel guilty as a result for the circumstances she has caused. No Vividha, you don't owe him cups of tea, and you don't need to feel bad when he's staring at you - you were FORCED into this marriage and if he actually cared about you he would've let you do what you wanted. It isn't HIS haq to have everything on his own terms - it isn't his right to exercise authority over Atharv and make him stay in that house. He has been his brother for what, a month? Yet Sujata, who has known her son all his life, should've fought for his freedom and his right to return home. If Ravish cared he would fund proper medical treatment, Atharv wouldn't be locked in a room and could have this treatment at home in Ajmer too. Instead he scared Sujata by telling her the same men could go after him again if he returned to Ajmer. Where's the freedom in that, where's Atharv's haq in that?! Hell, where's Sujata's haq in that?
To Atharv, freedom for himself was important but more than that he cared about the freedom of others. He freed all the Kashyap women from the confines of society. He doesn't want to marry Vividha because Ravish has ORDERED it to happen, he wants it to be her choice. Just as she decided she wasn't ready for intimacy, he respected the fact that she exercised her choice and felt no obligation. This would break his heart more than anything - seeing Vividha OBLIGED, which is what we're seeing right now. Vividha's haq, Vividha's freedom is meant to entitle her to walk away from anything at any time. Theoretically it also entitles her to walk away from Atharv and Sujata, and if she felt it would help she would have. Her haq to freedom would also offer her the choice to stay with Ravish - if she indeed loved him and didn't feel indebted and helplessly guilty as she does. Yet Ravish is hell-bent on things going how he's planned, how he's wanted them to.
In this situation only one person's haq has counted, and that's the self-imposed haq of Ravish to take everyone else's haq away from them.