Add mashed potatoes (aloo), chaat masala, black salt, roasted cumin powder, red chile powder, lemon juice, green chilie, and salt to taste and mix them.
3 Potatoes, medium , 1 tsp Chaat masala, ¼ tsp Black salt, ½ tsp Roasted cumin powder, 1 tsp Red chile powder, 1 to 2 tsp Lemon juice, 1 Green chile, finely chopped, Salt to taste