Some of the expressions say it clearly
1.the day she came she said shes from London and then Dharji and his wife had an awkward feeling
2.today when she was looking at this pic she was not telling sukhi of the pic and sukhi kept questioning her
i dont know why but i have a strong feeling that maybe tina is dharji's grand-daughter
IT CAN BE A POSSIBILITY SINCE we all know that dharji's children left him