pointing to a lady, shahrukh said, “she is the daughter of the only child of my grandmother.” how is the lady related to shahrukh?

Let's analyze the statement step-by-step: Shahrukh says:
“She is the daughter of the only child of my grandmother.”

Breaking it down:

• My grandmother : Shahrukh's grandmother.
• The only child of my grandmother : Since Shahrukh's grandmother has only one child, this child is either Shahrukh's father or mother.
• The daughter of the only child of my grandmother : This means the lady is the daughter of Shahrukh's parent.

Conclusion:

• The lady is Shahrukh's sister.

Answer: The lady is Shahrukh's sister.