Did yoou notice vandu was missing? maybe she ran away because she knows after function she had to return with ajit.
BTW, if i remember correctly, for the first child the girl goes to her mother's house in the last trimester (after godhbharai) and returns upto three months after baby's birth?
I understand that her dad's in US but he was going to back after godhbhari, wonder if she will be leaving then?