Originally posted by: FlauntPessimism
I don't think he needs to hide his nephew unless he is also his stepson.
The only excuse could be that in this story after Ansh' death immediately Karan Nandani shifted to the US(probably to take Nandani away from those sorrows). There they got to know Nandani was pregnant and maybe she had a relapse or PTSD. Could also be she went into coma like in original
Karan therefore has the child removed from their lives without telling anyone (either saying child was stillborn or that it died as an infant)
But I still don't understand where does Tanya come into picture here. Did Karan marry Tanya after the birth of this child like he did in case of Bhoomi? But unlike in case of Bhoomi, here he asked Tanya to take the child with her once she left after Nandani was awake. But then Parth should be younger to this child and would mean that Karan asked Tanya to take Nandani's son with her while have her own son left for Nandani to look after. This seems stupid but not completely impossible in Ekta universe
I still think this lady isn't Tanya, could really have been Mandira, because at that time Karan didn't find anyone else reliable enough to give the responsibility of child (remember she might have been evil but she near a good job in raising Karan) but I don't think makers will bring Tuhir third angle at this stage when they are making them reunited. So it will be some third person
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