Add chopped garlic and saute until the raw smell goes.
Add chopped onion followed by chopped tomato.
Stir fry the veggies for a minute or so.
Now add asafoetida , turmeric powder, saute for few seconds.
Add finely chopped fenugreek leaves and saute for few seconds.
Add 1 1/2 cup water and cover cook the soup for 5-7 minutes or until the dal is cooked well and can be mashed between fingers.
Lastly add freshly crushed black pepper and serve the soup warm.
Notes
You may add salt to the soup while its is boiling if you wish to. The red lentil soup with fenu greek leaves can be served over steamed rice or with phulka.