Question

pointing to a Pinky Simi said she is a daughter in law of the grandmother of my father's only son how is Pinky related to simmi

Answer 1

Pinky is simmi's mother as father's only son is Simmi. His grandmother's Daughter in Law is Pinky i.e. Simmi's father's wife i.e. Simmi's Mother.

Answer 2

good afternoon!!!!

here is your answer....

simmi said while pointing to pinky..
she is a daughter in law of my grandmother of my father's only son means she is the daughter in law of simmi's grandmother..

her grandmother has a son only this pinky is the mother of simmi.

hope this helps you!!!