Peel the potato and slice into bite size cubes. Thinly slice the onion and chop the tomato into bite size cubes.
In a bowl, add the fresh chenna along with salt to taste, flour, ½ tablespoon cumin powder, ½ tablespoon coriander powder, ¼ tablespoon chili powder and ¼ tablespoon turmeric powder. Mix it around to form a smooth dough.
Divide the chana/chenna mixture into small dumplings and shape it into tiny balls or flat discs.
In a heavy bottom pan, pour the oil and once the oil heats up, carefully place the dumplings and let it fry for 1 minute, then flip and fry for 1 more. Take it off the pan once done.
To the same pan, drop the potato cubes and sprinkle a tiny pinch of turmeric and salt. Stir it around and fry the potatoes for 2 minutes. Take it off once done.
If there is excess oil, remove it from the pan and leave 2 tablespoons oil.
Scatter the panch phoron and bay leaves to the hot pan and let it splatter for few seconds.
Scatter the oil and stir it around. Season with salt and let it soften down a little. Cook for 1 minute.
Add the tomato and stir it around. Then in a bowl add the remaining ground spices from the ingredient list and pour a little water to make a spice paste. Add the spice paste to the pan, stir and let it cook for 3 minutes.
Pour 2 cups water and bring it to boil, drop the whole green chili and then cover the pan. Let it simmer for 5 minutes.
Carefully layer the fried chenna/chana and, without covering the pan, let it simmer for 5 minutes. Check for salt and add more if needed.
Garnish with fresh cilantro leaves. It's optional and enjoy the Chanar Dalna warm with rice.