How is Manick related to Nisha?I. Manick is the only son of Nisha's mother-in-law.II. Ritu is Manick's only sister.

To determine the relationship between Manick and Nisha based on the given statements, we can analyze the information:

1. Statement I: "Manick is the only son of Nisha's mother-in-law."

   • This implies that Nisha is married to Manick's sibling. Since Manick is the only son of Nisha's mother-in-law, it suggests that Nisha could be Manick’s sister-in-law if Nisha's husband is Manick's sibling.

2. Statement II: "Ritu is Manick's only sister."

   • This indicates that Ritu is not married to Nisha and reinforces that Manick is not the son of Nisha directly.

From the analysis:

• If Manick is the only son of Nisha's mother-in-law, and Nisha is married to one of Manick’s siblings (could be Ritu or another sibling), then Nisha must be Manick's sister-in-law.

Conclusion

Taking both statements into account, we can deduce that Nisha is Manick's sister-in-law.