ammayi amma
Amme means mother and ammamme means mother's mother.
ammayi amma.
Your mother-in-law. Or, call her by her name.
You still call her your mother in law or if you were divorced you would call her your Ex- mother in law.
You can call her by her first name or if your comfortable some son-in-laws call them mom.
Your mother's brother-in-law is your uncle.
Your mother's brother-in-law is your uncle.
Mother in-law
The mother of your wife is your mother-in-law.
Your own mother
Well if its Wife or Hansband grandma then its you grandmother in law.
Your mother-in-law.