grandma inlaw
Your grandmother's brother's wife is your great aunt.
Your grandmother's grandmother is your great-great-grandmother.
Great Grandmother
Your grandmother's mother would be your great-grandmother.
Your grandmother's mother would be your great-grandmother.
She is your paternal grandmother.
Mother in-law
In Marathi, you would call your grandmother "आजी" (pronounced as "Aaji").
Gram? is that her grandmother if it is then it is your great grandmother
Sugar Daddy
In Malayalam, grandmother is called "ammachi" or "achamma".
Your father's grandmother is typically referred to as your great-grandmother.