Most of the house help and the people who serve us formally and informally never been called by their names !
Bua ,pichii , ei chele , professions name ,Tokai etc are the generic calling name which is used evryday
The worst part of the whole process is giving a new name of our convenience
It doen't cost us any money or extra effort , just our wish is more than enough for this big change to happen . . .