Step 1: Analyze phrase "only son of my father"
The "only son of my father" refers to Ravi himself (assuming Ravi is the only son).
Step 2: Woman is daughter of Ravi
So the woman is the daughter of Ravi.
Step 3: Since Ravi is pointing, likely referring to his own daughter
But question asks relationship to Ravi.
Step 4: Check carefully
If "only son of my father" is Ravi, then woman is his daughter.
Step 5: Conclusion
Hence, the woman is Ravi's daughter.