You need 1 ingredient. The key ingredients include: ["4 teaspoons salt", "2 1/4 tablespoons sambar garam masala powder (I use the MTR Madras Sambar Masala powder brand, that's the brand I love the best)", "1 1/2 tablespoons asafoetida powder (known as ""hing"" in Hindi)", "1 cup yellow lentils, cleaned, washed, soaked in plenty of water and drained (toor dal)", "1 1/2 cups peeled washed and diced yams (known as ""sooran"" in Hindi)", "1 small potato, peeled, washed and diced", "5 -6 garlic cloves, peeled, washed and slit lengthwise (slit each clove of garlic into 3 parts lengthwise)", "1 small carrot, peeled, washed and diced", "1/2 cup flat indian beans, washed, ends trimmed and chopped into 1 inch size pieces (commonly called ""guavar"" in Hindi)", "2 large vegetable drumsticks, washed, peeled, ends trimmed and chopped into 2 inch sized pieces", "3 cups water", "2 teaspoons turmeric powder", "2 medium green chilies, washed and slit lengthwise", "20 fresh curry leaves, washed and torn between the palms of your hands", "1 teaspoon cumin seed", "1 teaspoon mustard seeds", "5 -6 tablespoons oil", "1 large tomatoes, washed, peeled and chopped", "10 -12 okra, washed and chopped into 1 inch size pieces (commonly called ladyfingers or ""bhindi"" in Hindi)", "5 whole red chilies", "1/2 cup tamarind pulp or 1/2 cup tamarind juice", "1 teaspoon methi seeds"].