Pointing towards Sweety, Sripad said, "I am the only son of her mother's son." How is Sweety related to Sripad?

Introduction / Context:
This is a typical blood relation puzzle involving nested expressions like her mother's son. The goal is to correctly identify who that person is and then track how the speaker is related to the target person. Accuracy depends on slowly decoding each phrase instead of trying to jump to the final relationship in one step.

Given Data / Assumptions:

• Sweety is the girl being pointed at by Sripad.
• Her mother's son refers to the son of Sweety's mother.
• Sripad says that he is the only son of that person.
• We assume a simple family structure where her mother's son is a direct child of Sweety's mother.

Concept / Approach:
The expression her mother's son describes a male child of Sweety's mother. That person is the brother of Sweety. Sripad then states that he is the only son of this man. If the man is Sweety's brother, and Sripad is his only son, then Sweety is the father's sister of Sripad. In common English family terms, the father's sister is called an aunt. So the relation of Sweety to Sripad is aunt.

Step-by-Step Solution:
Step 1: Identify her mother's son. Her refers to Sweety. So this is the son of Sweety's mother.Step 2: The son of Sweety's mother is a male child of that mother, so he is Sweety's brother.Step 3: Sripad says that he is the only son of this man, so this man is the father of Sripad.Step 4: If Sweety is the sister of Sripad's father, then she is Sripad's paternal aunt.Step 5: Therefore, Sweety is related to Sripad as his aunt.

Verification / Alternative check:
Imagine a family where a woman has two children: Sweety and a son X. X grows up and has a son, Sripad. From the viewpoint of Sripad, X is his father and Sweety is his father's sister. This matches exactly the description in the question. There is no way to reinterpret her mother's son as the father of Sweety or any other relative that would produce niece, mother or cousin as the correct relation to Sripad.

Why Other Options Are Wrong:
Niece is wrong because that would mean Sweety is one generation below Sripad, which is not supported.Mother is wrong because Sweety is the sister of Sripad's father, not his parent.Cousin is wrong because cousins share grandparents but not parents like this.Sister is wrong because Sweety is in the generation above Sripad.

Common Pitfalls:
Many learners misread her mother's son as her son and immediately think grandmother, mother or niece relationships. Others forget that every phrase must be interpreted from the correct reference point, which here is Sweety. A good trick is to rewrite the statement by substituting Sweety in place of pronouns and then simplifying each step into plain words like brother, father and aunt.

Final Answer:
Sweety is related to Sripad as his Aunt.