Sambhar masala used in sambhar for high quality taste . Cook Dal in water till soft after adding salt and Turmeric Powder . Mash the dal to a paste . Heat 3 Tbsp oil and add tomatoes, tamarind , coconut , ground spices , and cook till thick , mix in vegetable , and curry and coriander leaves along with dal and 4 cups water . Cook till the vegetables are done . Heat 1 tbsp oil and add cumin and mustard seeds and asafoetida when the seeds stop crackling put over the sambar .