I think Neel is adopted.
Abhi is Harsh’s son but Manj is not the mom. Abhi was also adopted, but he is Harsh’s son biologically.
But I still don’t understand why Manjari said “abhi ko 9 months pet mein rakha blah blah “ when she was telling everyone she knows her son in and out.
This in oneself explain why she can't understand her own son,
Baaki baat dialogue baazi ki toh Manjiri is only good in faltu aur kabhi kabar heavy emotional dialogue maar leti hain.
She herself doesn't know what she wants to say sometimes, upar ke wiring main solid jhol hain voh I can understand. I've many such Manjiris in my life 🤣