), is a suffix used in a number of Indo-Aryan languages, like Hindi/Urdu, Gujarati, Bengali or Marathi.
[1] For example; it may indicate a person involved in some kind of activity, where they come from, or what they wear (topiwala), i.e., habitué.
[7] "Base wallah" had a derogatory reference for a person who is seldom seen at the front lines during major attacks, pretending to be sick.
There is a character named General Robotwallah in the 2010 novel For the Win by Cory Doctorow.
Wala or Vala was also used in Parsi and Dawodi Bohra surnames, suggesting the derivation from a profession or a place name.