Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      cups          yogurt -- whisked
   2                    boiled potatoes -- (cooled), peeled
                        -- and
                        -- diced
   2      tablespoons   chopped coriander leaves
   1                    green chile -- (deseeded), finely
                        -- chopped
   1      teaspoon      roasted ground cumin seeds
     1/2  teaspoon      red chile powder
   1      teaspoon      chaat masala
                        salt -- to taste

Preparation:

Add the salt, red chile powder, chaat masala to the yogurt and mix well. Taste and adjust seasoning. Add the potatoes, green chile and coriander leaves. Mix well. Transfer to a serving bowl. Garnish with roasted cumin powder. Refrigerate until required.