Not sure whether this would be true given tc spoilers never come true nowadays, but I do see a possibility of the lawyer telling karthik to character assassinate naira in order to win kairav's custody by hook or crook. Obviously, karthik would never agree for this, else his character would be irredeemable. Also it makes sense for court to be in naira's favour as it is widely acknowledged that young children need their mother more as a mother is always the primary caregiver of a child rather than a father.
4