For Dahi -
1. Blend dahi (curd/ Yogurt), green chillies, salt, cumin powder, ginger with little water till it is smooth.
2. Blend the curd (yogurt) and little water until it is smooth.
3. Keep in refrigerator for an hour to get chilled.

For Vada -
1. Clean, wash & soak urad daal overnight.
2. Grind it to smooth paste.
3. Add salt to taste.
4. Heat oil in kadhai. Add spoonful of batter. Fry till it get golden brown.
5. Take water in a bowl. Place hot vadas in water till next batch of vadas is ready.
6. Remove vadas and gently press between your palms so that excess water oozes out.
7. Repeat this process for all remaining batter.
8. Place these vadas in deep dish. Pour prepared dahi till all vadas get soaked in Dahi.

Serving-
1. Place vadas in serving bowl.
2. Pour dahi mixture evenly on Vadas.
3. Sprinkle some red chilli , cumin powder.
4. Garnish with coriander leaves, thin shev, tamarind chutney (optional)