Add chicken, ginger garlic paste and ½ teaspoon of salt to a pan, mix well and set aside to marinate for 15 minutes.
500 grams bone-in chicken, 2 teaspoons ginger garlic paste, ¾ teaspoon salt
Heat the pan with marinated chicken. Add onions, tomatoes, potatoes, green chillies, red chillies, lemon grass root, coriander leaves, hot water, mix well and cook covered for 15-20 minutes till the veggies and chicken are cooked well.
1 onion, 1 tomato, 2 potatoes, 4 green chillies, 2 red chillies, 1 lemon grass root, 2 tablespoons finely chopped coriander leaves, 1 cup hot water
Using a tong or a spatula, take out the cooked tomatoes, potatoes, green chillies, red chillies and transfer to a plate. While it is still warm, mash them roughly with your hands. Refer note 2 & 3.
Add the mashed paste back to the pan, mix well, and boil for 3-4 minutes till the gravy thickens and serve.