First Pressure Cook dal
Add oil and heat
Add green chilli and curry leaves; mix well
Furthermore small onion and garlic; saute till onion turns translucent
Add tomato saute till turns slightly mushy
Add tamarind water and boil
Furthermore add cooked dal and salt
Grind coconut, sambar powder, and water
add it to the kuzhambu
furthermore add turmeric powder, drumstick leaves; boil for 7 minutes
You can blend it if kids don't like biting leaves and serve as kadayal