Your initials indicate.........

In Southern districts of Kerala, initials of our name indicate the first letters of a child's parents while in middle and northern regions, mother's name is nowhere included and initials of a kid include his father and his family name only. What about you people? Also, give expansion of your names.
My intials is T.S. Thankarajan for father and Selvi for mother.
May be given in reverse order also, if the kid is a girl. It's only personal preference.
Here, another procedure is also there, to include any one of the parents' name.....particularly, if boy, given father's name and if girl, given mother's name.