Pointing to a women, Naman said, "She is the daughter of the only child of my grandmother." How is the women related to Naman?

Pointing to a photograph a man said,"I have no brother or sister but that man's father is my father's son." Whose photograph was it ?

Introducing a man, a woman said," His wife is the only daughter of my father," How is that man related to the woman?

Pointing to a photograph, a man said,"She is the grand daughter of the elder brother of my father." How is the girl in the photograph related to this man?

Introducing Reena, Monika said, "She is the only daughter of my father's only daughter." How is Monika related to Reena? 

Pointing towards a girl in the picture, Sarita said, "She is the mother of Neha whose father is my son." How is Sarita related to the girl in the picture?

A man said to a lady, " Your mother's husband's sister is my aunt." How is the lady related to the man?

Pointing to a man, a woman said, "His mother is the only daughter of my mother." How is the woman related to the mother ?

Deepak said to Nitin, " That boy playing football is the younger of the two brothers of the daughter of my father wife." How is the boy playing football related to Deepak?

Complete the series.....
ALN, DNR, GPR, ?