To begin the preparation of Kathirikai Urulaikizhanghu Kuzhambhu, in a medium sized pan, heat oil over medium heat. Once the oil is hot, add mustard seeds.

Once the mustard seeds splutter, Add the remaining ingredients mentioned under tempering to the oil

Fry until the urad dal turns slightly brownish

Add chopped onions and cook until they are translucent

Add chopped tomatoes and cook until they become tender

Now, add cubed Brinjals and potato to the mixture in the pan

Add sambar powder, chili powder and salt to the mixture. Stir them well so that the vegetables are evenly coated with the spice blend.

Cook with the lid covered until brinjals and potato become tender.

Heat a ½ cup of water and add tamarind to the hot water. Extract tamarind juice and set aside

Add the extracted tamarind juice to the blend in the pan. Add 2 cups of water to the gravy

Cook the curry over low heat until Brinjals and Potatoes are cooked well.

Simmer the curry till the oil separates from the gravy.

Serve the Kathirikai Urulaikizhanghu Kuzhambhu with hot rice and fried pappad