Explanation:

- Swati is the daughter of Anil’s only sister, Akshara.

- This makes Swati the niece of Anil.

- Anil's mother is Gouri, making Gouri Swati's grandmother.

- Kamini is Gouri's mother, making Kamini Swati's great-grandmother.

- Gaurav is Kamini's husband, so he is Swati's great-grandfather.

- Poonam is the mother-in-law of Gaurav, indicating the relationship of Gaurav to his spouse.

- Option 1: Daughter - Swati cannot be Gaurav’s daughter because she is his great-granddaughter.

- Option 2: Great Granddaughter - Swati is indeed the great-granddaughter of Gaurav. Correct Answer

- Option 3: Granddaughter - Swati is one generation further, not directly Gaurav's granddaughter.

- Option 4: Great granddaughter's daughter - This would make Swati's child the correct relation, not Swati herself.