In a family, there are six members A, B, C, D, E and F. 

A and B are a married couple, A being the male member. D is the only son of C, who is the brother of A. E is the sister of D. B is the daughter-in-law of F, whose husband has died. How is E related to C ? 

Introducing a man, a woman says, "His son's mother is the only daughter of my mother". How is the man related to the woman?

Abhishek is Byomkesh's brother and Vimal is Jackie's father. Ella is Byomkesh's mother. Abhishek and Jackie are brothers. How is Ella related to Vimal?

Introducing a girl, Pooja says, "Her mother's son is the nephew of my father". How is the girl related to Pooja?

B is the brother of A, and A is the son of C. D is C's father. How is B related to D?

Introducing a man, Amar says, "His wife is the only daughter of my maternal grandfather". How is the man related to Amar?

Raman is Sunaina's father and Sunaina is Vidur's wife. Saksham is the father of Vidur's father. How is Saksham related to Sunaina?

Introducing a girl, Raju says, "She is the daughter of my grandfather's son's daughter". How is the girl related to Raju?

Raju's wife is the sister of Rakesh's son. How is Raju related to Rakesh?