I remember watching a Top Gear special in India which showed the delivery system for hot food for workers from their wives - the food was placed in metal tins,

I remember watching a Top Gear special in India which showed the delivery system for hot food for workers from their wives - the food was placed in metal tins, loaded into pallets, driven to trains, offloaded from trains, and driven to the workers. The reliability of the system was surprisingly high IIRC