n. orig. Anglo-Ind., now sl. 1 a person concerned with or in charge of a usu. specified thing, business, etc. (asked the ticket wallah). 2 a person doing a routine administrative job; a bureaucrat.
[ Hindi -wala suffix = -ER(1) ]
WALLAH
Meaning of WALLAH in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012