There are two couples in a family. Komali has two children, Madhurima is the wife of Omprakash, who is the brother of Mani. Pinky is the daughter of Komali. Urmila is the sister of Sanju, who is the son of Omprakash. Tarun is the son of Mani, who is a male. How is Madhurima related to Komali?

The correct option is Sister-in-law.

Let us break down the family relationships step-by-step to understand how Madhurima is related to Komali:

1. Omprakash's Immediate Family:
Madhurima is the wife of Omprakash. This means Madhurima (female) and Omprakash (male) form one of the two married couples in the family.
Sanju is the son of Omprakash, and Urmila is the sister of Sanju. Therefore, Sanju and Urmila are the children of the Omprakash-Madhurima couple.

2. Mani and Omprakash's Relationship:
Omprakash is the brother of Mani, and Mani is a male. This means Omprakash and Mani are brothers.
Tarun is the son of Mani.

3. Komali's Family and the Second Couple:
The problem states there are two couples in the family. We already know Madhurima and Omprakash are one couple.
Mani is a male who has a son named Tarun. For Mani to have a child and keep the family structure intact, he must be married, forming the second couple.
Komali has two children, and one of them is Pinky (her daughter). Since Mani needs a wife to complete the second couple, Komali must be the wife of Mani. Thus, Mani and Komali form the second married couple. Their two children are Tarun and Pinky.

4. Relationship between Madhurima and Komali:
Mani and Omprakash are brothers.
Komali is the wife of Mani, and Madhurima is the wife of Omprakash.
Since Komali is married to Mani, and Madhurima is married to Mani's brother (Omprakash), Madhurima is the sister-in-law of Komali (specifically, her husband's brother's wife, or co-sister-in-law).