In English, the wife of your brother (elder or younger) is your sister-in-law. If you have a child, she is your child's aunt.
கொழுந்தனார் (kozhundhanaar) husband's (usually elder) brother.
You don't call your brother's sister your aunt. Your brother's sister is your sister, or you. Your aunt is the sister of your mother or father.
what i call my father elder brother's wife
In Malayalam, elder brother is called "ചേട്ടന്" (chettan).
I will call her niece.
Your brother's wife is your sister-in-law.
brother in law or their name
The elder brother's wife is called "Bhabhi" in Hindi.
your uncle
In Hindi, your father's elder brother is called "chacha" (चाचा).
what i call my father elder brother's wife
what i call my father elder brother's wife