Heat 2 tablespoons of oil in a pan and fry the diced potatoes with salt and turmeric powder.
Once fried, take them out and keep aside.
Now heat the remaining oil and add cinnamon stick in the oil.
Once the oil turns aromatic, add chopped onions and stir till they turn transparent.
Next add ginger and garlic paste, cook well.
After few minutes, add chopped tomatoes and cook until the raw smell is gone.
Add little bit of sugar to balance the tangy taste of tomato.
Next add spice powders including turmeric powder, red chilli powder, and coriander powder.
Also, add green chilli and salt to the spice mixture.
Finally, add minced chicken and cook well with the spice mixture.
After that when the minced chicken is tenderized and changed its color, add fried potatoes into it and cook well.
Now add 1 cup of water and cover the pan with a lid until the potatoes and minced chicken are done.
After 7-8 minutes, remove the lid and allow to evaporate the remaining water in the curry and turn off the heat.
Garnish with chopped coriander leaves and serve with your favorite Indian flatbread.