Take half a cup of moong dal in a bowl. Wash and soak it for 20 minutes.
Meanwhile, separate the white and green portions of spring onion. Chop the green portion into medium-sized pieces. Take water in a bowl and wash it twice or thrice.
Chop the white part of the spring onion finely using a chopper or knife.
Now, take garlic cloves, cumin seeds, red chili powder and turmeric powder to a khal-batta [mortel and pestle] and make a rough paste of it. We can also use a grinder here.
Heat oil in a kadai. Add freshly crushed garlic and chili powder paste to it.
Saute it on a low flame for a minute. Now, add the finely chopped white part of spring onion. Saute it until the onion becomes translucent.
Then add the green part of spring onion and mix it well.
Add soaked moong dal and salt to it and mix it well. Also, add 2 cups of water to it and cook it on low flame for 10-15 minutes.
Serve hot spring onion dal curry with soft chapati or roti and rice.