Unlike Western cookers that use timers, Indian Prestige cookers rely on the "whistle" (steam release). A standard recipe for Chickpea Curry (Chole) using a Prestige 5-liter cooker requires 4 whistles on high heat followed by 2 on simmer—a precision metric unique to this brand.
Prestige mastered the "Bottom of the Pyramid" distribution model before it was a management buzzword. pressure cookers prestige