Clean the chicken properly with running water and marinate with turmeric powder, salt (3 tablespoon) in a mixing bowl. Keep it aside for 10 minutes.
Take a frying pan and fry the potato with little salt until it becomes brown. Then take a kadai, heat it and pour mustard oil in it and put the marinated chicken. Fry the chicken for 7 minutes. Now add onion and garlic and stir it well. Then cover it for 5 minutes.
Now open the cover and add ginger paste with kashmiri red chilli. Stir well and cover for 5 minutes.
Again open the cover and add green chilli, tomato. Add salt (1 tablespoon), stir well and cover for 5 minutes.
Now Open the cover and add fried potatoes, cumin powder, black pepper to it. Stir well and again cover it for 5 minutes.
At last, open the cover and pour hot water (refer amount) into it and stir well for 2 minutes.