Take 1 cup semolina in mixing bowl add 1/2 cup curd+1/2 teaspoon baking soda +1/teaspoon baking powder +salt as per taste mix well. Add water as required and prepare an idli batter consistency. Allow to rest for 15-20 minutes or till the semolina absorb water. Pour the batter onto greased idli plate. Steamed them on a medium flame for 15 minutes or till the idli are cooked completely.

Heat a pan add4-5 tablespoons oil add 1/2 teaspoon Cumin seeds +1/teaspoon Mustard seeds and saute for 10 seconds. Add chopped onions +chopped green chilli and saute for 2 minutes.add 1 teaspoon Turmeric powder +chill powder +1tablespoon coriander powder and saute for 30 seconds add chopped tomatoes +chopped brinjal +chopped bottle guard and saute for 4-5 minutes on high flame. Then add toor dal and mix it with, add water +tamarind pulp and cook until the toor dal vegetables are cooked.

For sambhar masala-- Roast all the ingredients and grind together to make a powder.