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

Introduction / Context:
This blood relation question checks whether you can convert a short spoken statement into a clear family tree and then identify the correct relationship. Such questions are common in verbal reasoning tests for banking, SSC, railways and other competitive exams, so understanding the logical pattern is very important.

Given Data / Assumptions:

• A woman is speaking and introducing a man.
• She says, "His wife is the only daughter of my father."
• The phrase "my father" clearly refers to the father of the woman who is speaking.
• "Only daughter of my father" means that the woman speaking is the single daughter in that family.
• We assume standard monogamous family structure without half siblings unless stated.

Concept / Approach:
The key idea is to rewrite the sentence in simpler logical pieces. Translating the line into relationship language: "The wife of this man is the woman who is the only daughter of her father." If the woman is the only daughter of her father, then she herself is that only daughter. So the man being introduced must be married to the woman who is speaking. Once that is understood, the asked relation becomes straightforward.

Step-by-Step Solution:
Step 1: Identify "my father". This is the father of the lady who is doing the introduction.Step 2: The expression "only daughter of my father" means there is exactly one daughter in that family, and that daughter is the speaker herself.Step 3: Replace the phrase in the original sentence. The line becomes: "His wife is me," or more formally, "The wife of this man is the woman who is speaking."Step 4: If the woman speaking is the wife of that man, then the man is the husband of the woman.Step 5: Among the given options, the relationship that matches is "Husband".

Verification / Alternative check:
To double check, imagine a simple example. Suppose the woman is named Riya and her father is Arun. Arun has only one daughter, Riya. If Riya says, "His wife is the only daughter of my father," she is clearly talking about herself as the only daughter. Therefore the man she is introducing must be her own husband. This confirms that the logic is consistent and no other option like brother or uncle can fit.

Why Other Options Are Wrong:
Brother would require that the man share the same parents with the woman, which is not suggested here. Father-in-law would be father of her spouse, not her spouse himself. Maternal uncle would be a brother of her mother, which again does not match the description in the statement. None of these options use the information that the man is married to the only daughter of her father.

Common Pitfalls:
Candidates sometimes misread "only daughter of my father" as some other female relative such as a sister or cousin, forgetting that the speaker is herself a daughter. Another common mistake is to overcomplicate the scenario rather than simply substituting the phrase with "me". Whenever you see "only son of my father" or "only daughter of my father", first ask whether it refers to the speaker themselves.

Final Answer:
The man being introduced is the husband of the woman.