In a bowl, add moong and mash daal.
Wash and fill with water.
Soak the daal for 5 hours.
Now drain water and add soaked daal in the blender.
Also season with salt, red chili powder, baking soda, cumin seeds, coriander seeds, garlic cloves, and green chilies.
Add 100 ml of water. Blend and make a thick paste.
Now take a small portion of paste and deep fry as showing in the video.
Fry the bhallas until get golden brown color.
Take it out and immediately add in lukewarm water for 15 minutes to get soft.
In the meanwhile, prepare yogurt (Dahi).
In a bowl, add yogurt, salt, red chili powder, chaat masala.
Whisk well to make a thick paste.
Add milk and water to manage yogurt consistency.
Note the yogurt consistency at 03:11 (Video).
Now squeeze water from bhallas.
Set in a platter.
Sprinkle chaat masala at the top layer of bhallas.
Pour the yogurt.
Also pour imli ki chutney and green chutney to make it more delicious.