For Ragda
Wash and soak dry peas for about 5-6 hours in warm water or overnight.
Once soaked enough, add them into the pressure cooker. Peel the skin and cube the potato and add it into the dry peas with required water.
Add turmeric powder, asafetida (hing), green chilies, and salt, and pressure cook for 3-4 whistles. Once cooked, mash it a little bit with a potato masher and keep it aside.
In a deep pan, heat oil, add cumin seeds, hing, ginger, green chilies, cumin-coriander powder, fennel powder, turmeric, and chili powder, and roast for a minute on low flame. Then add 1/2 cup of water, rock salt, and let it boil.
Now, add the cooked peas and potato mixture to the boiling water, mix well, add more water if required, and let the curry boil. Then, cook it on low flame for about 5 minutes.
Next, add green chutney, tamarind water, and chopped coriander, and mix it well. Keep it aside.
For Patties
Add boiled, peeled and mashed potato into the mixing bowl. Add salt, turmeric, green chili-ginger paste and corn flour.
Mix all ingredients very well using your hand and make small-small flat-round shaped patties from the mixture. Use same process for remaining mixture, make more patties and keep aside.
Heat a griddle, grease the few drops oil on it, place the prepared all patties over it and roast or cook both the sides of patties till golden brown, use few drops of oil for roasting if required.
All Patties are ready for serving.
Process for Serving
Take a serving plate, place the two patties/tikki into the plate, pour the ¼ cup of prepared ragda over it, then drizzle sweet chutney and green chutney as per your taste.
Garnish it with some chopped tomatoes, onions, coriander leaves and then sprinkle some grated carrot, beetroot, sev and chaat masala over it.
Ragda Patties is ready, serve fresh and enjoy the lip-smacking chaat.
Prepare more Ragda Patties plates out of the remaining mixture.