Nandini is described as the only daughter of "Madan's sister Sangita's brother." Interpreting this chain correctly, how is Nandini related to Madan?

Introduction / Context:
This question is about carefully reading a nested description: "Madan's sister Sangita's brother." The goal is to identify which person is being referred to after this chain and then see how Nandini, as that person's only daughter, is related to Madan. This is a good example of how important punctuation and grouping are in blood relation questions.

Given Data / Assumptions:
• Madan has a sister named Sangita.• We are told about "Madan's sister Sangita's brother."• Nandini is the only daughter of this person.• Standard assumption is that Sangita's brother in this context is Madan himself.

Concept / Approach:
The expression "Madan's sister Sangita's brother" is parsed as follows: start with Madan, then his sister Sangita, and finally Sangita's brother. The brother of Sangita is Madan again, because siblings share parents and Sangita is already named as Madan's sister. Hence the chain returns to Madan. If Nandini is the only daughter of Sangita's brother, and that brother is Madan, then Nandini must be Madan's daughter.

Step-by-Step Solution:
Step 1: Madan has a sister named Sangita, so Sangita and Madan are siblings.Step 2: The phrase "Sangita's brother" refers to the male siblings of Sangita.Step 3: Among such brothers, the one we know by name is Madan himself.Step 4: Therefore, "Madan's sister Sangita's brother" refers back to Madan.Step 5: Nandini is said to be the only daughter of this person.Step 6: Hence Nandini is the only daughter of Madan and is therefore Madan's daughter.

Verification / Alternative Check:
If you build a small family tree with parents at the top, two children Madan and Sangita in the next generation, and then consider Sangita's brother, you arrive at Madan. Attaching Nandini as the only daughter of that brother clearly places her as Madan's daughter. No configuration that makes her a niece or cousin fits the exact wording of the chain as well as this one.

Why Other Options Are Wrong:
Niece of Madan: A niece would be the daughter of Madan's sibling, such as a daughter of Sangita, but the chain says daughter of Sangita's brother, which is Madan.Cousin of Madan: A cousin would share grandparents with Madan but would not be directly described as the daughter of Sangita's brother.Either niece or daughter of Madan: The wording is precise enough to fix the relation as daughter, not niece.Granddaughter of Madan: This would place Nandini one generation below Madan's children, which is not supported by the description.

Common Pitfalls:
Students sometimes misread the phrase and think that Nandini is the daughter of Madan's sister, which would make her a niece. However the chain ends at Sangita's brother, not at Sangita. Always track the last person referenced in such chains carefully before linking the next relation.

Final Answer:
Nandini is the daughter of Madan.