Actually recently i read a curious and interesting case of an romantic couple which were considered incest by people but they actually were not.
I know Jagya and Anandi's biological kids share a sibling relationship. At least the one who met. Is it possible for Abhi and Nandini to have any sort of romantic relationship? If, for suppose, they don't consider themselves siblings, will it be incest if they pursue any such relationship? Technically they are not related by any blood. Anandi is merely adopted daughter of Singh family but not adopted sister of Jagya. Neither did Shiv ever considered Jagya as his brother.