Definition 1 of 1
Can be added as a suffix to denote a trade; "from" or "belonging to" a particular profession or location; wallah is for man and wallih for woman -- e.g. shopwallah (guy who owns the shop), banglewallih (woman who sells you bangles), sabjiwallah (guy who sells you veggies), or Dhilliwallah (fellow from Delhi).
Please go and tell the shopwallah that his rice is full of keeda (insects)!
That meatwallah sells Halal, so I go there only.
Added 2011-08-06 by Rangamuffin