In a deep pan, heat three tablespoons of mustard oil.
Sprinkle ¼ Tsp. each of turmeric powder and salt on the potatoes and fry them until they turn a delightful golden brown. Set them aside once they are fried.
Temper the remaining oil with bay leaf, dry red chilies, green cardamom, cinnamon stick, and cumin seeds.
Caramelize the sugar in the oil by cooking it.
Fry the sliced onions until they become translucent, as this step is crucial for achieving a richly colored gravy.
Next, add the remaining ginger-garlic paste and fry it on low heat for 2-3 minutes.
Then, add the pureed tomatoes and fry for an additional 5 minutes.
In low heat, fry the remaining cumin powder, coriander powder, turmeric powder, Kashmiri red chili powder, and salt for 4-5 minutes (you can add 1-2 tablespoons of water intermittently).
Combine fried potatoes with water and mix thoroughly, allowing them to cook for 5 minutes.
Meanwhile, bring about 1 liter of water to a boil in a separate pot. Pour the boiling water into the chicken mixture.
Enhance the gravy by adding whole green and red chilies, which will infuse it with a delightful flavor. Take a spoonful of the gravy to taste and adjust the spices as needed.
Cover the pan with a lid and let the chicken simmer on medium heat for approximately 10 minutes, or until it becomes tender.
Stir in the garam masala powder to give the curry a final touch.
Turn off the heat and let the Murgir Jhol sit for 5 minutes.