First take 2-3 cup water in cooker,add chopped brinjal,radish,carrot,onion, tomato,lauki in it.

Cover the cooker and kept on high to medium flame for 10 minutes.

Now open the cooker and slightly mash all the boiled vegetables with masher.

Now add toor dal and add 3-4 cup water in it (add water accordingly as you need thickness of sambar)

Cover the cooker and boil it for ten minutes on high to low flame.

Now heat oil in Kadai. Add mustard seeds, curry leaves, red dry chilli, fry it for a minute.

Add salt, turmeric powder,coriander powder, sambar powder,asafoetida,and tamarind water

After a min add boiled dal and vegetables in it(if need mash dal with masher smoothly).

Boil it for 10 min on medium to low flame.

Smabar is ready to serve with dosa or rice