The silver foil on those yummy sweets is called 'Varakh' in local Indian dialect. It is used as decoration on many Indian sweets, paan and even Chyavanprash. Silver is widely used for various purposes in the market today. Silver is considered precious and its utility is enormous. The reason behind this is that silver reflects back 95% of the light energy that falls on it. The silver foils used for edible purposes are called VARAKH.