Doesn't Sandhya/Yuvraj/Neeraj track remind you of Vaidehi?
In Vaidehi, Vaidehi's husband is impotent and cannot have kids, so he married Vaidehi and request Manav Gohil who is an orphan and has been brought up by Vaidehi's in-laws (Kiran Kumar and Aroona Irani)... Ultimately Vaidehi and Manav fall in love and end up being together!