I think bhabho shouldnt have told Shweta about Saloni or Nahar not being her real parents. This wasnt a majboori she just said that because she hates saloni and doesnt want Saloni to be anywhere near the Singh Paarivar. and now Shweta will probably hate Saloni because she'll think that Saloni never loved her anyway
Bhabho is a spiteful soul, all the time she's shouting to the rooftop that Shweta is Nahar's nishaani and today she threw all that out the window and tells the poor child who has a heart condition that she's not NS daughter.