n n Peel the oranges and separate the wedges. In a pan roast the wedges till it becomes mushy (about 1 minute). Let it cool.n n Take a hand blender and blend with 1/2 cup of ice cubes, black salt, sugar, lemon juice, chaat massala and water.n n Sieve the mixture through the sieve.n n Next, ready the glasses. Take some salt in a plate. Rub a lemon wedge lightly around the rim of a glass to wet it and then turn it upside down and dip the rim in the salt. Slightly shake it, so all the excess falls off.n n Fill the glasses with remaining 1/2 cup ice cubes and garnish with lemon roundels.n n  nnn  n