- Soak and boil kidney beans Make puree of chopped tomato Mix bengal gram flour in water In a kadai, heat oil and add mustard seeds, asafoetida, curry leaves, ginger garlic paste, green chilli paste and saute well. Once mixed, add the prepared tomato puree, boiled kidney beans, bengal gram flour mixture and mix well. Then add water and mix well again. Finally add salt, red chilly powder and mix well. Serve hot.