Non-PRO Hindi to English Art/Literary Poetry & Literature

two indian men are talking about their old and resentful days in britain - just before the independence. one says to the other:
“Remember how I took you to buy the coat in London? Remember that awful bloody thing you had? Looking like a real gow wallah? Remember how you used to pronounce Jheelee as Giggly? Remember? Ha ha.”

does "gow wallah" mean something like cowboy? thank you