Finely chop the green chillies, beat the yogurt with little water and keep it aside.
Method
Rinse thick rice flakes using enough water and drain off the water. Let it rest for 5 minutes and then squeeze water from poha and keep it ready.
Next in a seasoning pan add all the seasoning ingredients in the order mentioned, as the mustard seeds start sizzling add chopped green chillies and grated ginger. Saute for a while and switch off. Let the seasoning cool down to room temperature.
Finally it is mixing everything, so in a wide bowl add thick poha, yogurt, milk, salt, coriander leaves and green chilly seasoning prepared above. Mix everything well. Add additional yogurt if required. Garnish with pomegranate seeds and serve.
Notes
If the rice flakes are too thick and hard, soak them in water for about 5 minutes before draining it off.
Dahi poha thickens with time. So let it be of running consistency initially.
You can top it with grapes and raisins to enhance the taste.
Also you can use cashews in the seasoning to make it rich and flavorful.