Ingredients: 
Yoghurt - 1 cup
Roasted cumin powder - 1/2 tsp
Asafoetida - a pinch
Black salt - a pinch
Salt - to taste
Mint leaves - a few

Method:
In a mixer add all the ingredients mentioned and blend to a smooth consistency

Add 4 cups of  water and blend again for a minute

Pour in individual glass and add some ice cubes or keep it in the refrigerator

Garnish with mint leaves and serve chilled