Are we talking about a different serial then?
Taps got the baby from her uncle. That baby was not stranded or was not given to any unknown person by his mother. That baby was stolen by an unscruplous evil satan who happens to be a Nani and mentor of Taps, who was doing all sorts of evil things and do claims living for her wonderful Natin's sake.
Do you remember when and under what circumstance Ichcha decided to keep Mukta when her life itself was a big "?" Taps cannot be compared with Ichcha atleast under this point.