Cooking chapattis in the street

These were for a wedding and about 4 times normal size.  Another woman was helping by every so often pushing the logs further under the upturned metal cooking surface and controlling the heat.  She also was taking the correct amount of dough and rolling it into balls.and when a chapatti was cooked she  retrieved it as it was tossed to her and folded it into four before placing it in a cardboard box.  They told me that 500 guests were expected.