Their father is a doctor from Saudi Arab,Then started job in USA as research medical scientist in Harvard affiliated hospital and MIT and then done retired ,he is now very old about more then 73 years and just stay at home and take care of himself and his old sick wife.
And they both are not so much active now in brain to talk things clearly.
She is eldest girl in family but looks younger of all..So people get confused and tell wrong things by saying---"big girl did that/tell such"---actually those are all her other sisters talk/work,she is totally opposite of those what people says wrong without see/talk to her(some Bengali have problem of JELOSY about doctors /if failed with their proposal (as some may be interested for their outside USA brother to bring in USA----as you know when those failed ,they Making talks for last 7years!!)