aloo chaat recipe for navratri fasting

Name: aloo chaat recipe for navratri fasting
Ingredients: * 2 medium sized potato (aloo); * 1/2 teaspoon roasted cumin powder (bhuna jeera powder); * 1 teaspoon chaat masala powder (optional); * 1/4 or 1/2 teaspoon red chili powder (lal mirch powder); * 1 teaspoon dry mango powder (amchur); * 1/2 teaspoon lemon juice; * rock salt or sendha namak a required; * water for boiling the potato; * a few coriander leaf or mint leaf for garnishing the potato