clean dal and boil with enough water,salt and turmeric till soft then mashed it with water .
Cut the chicken into 2-3inch pieces.Put the onions,garlic,ginger,salt, chili powder, ground coriander, chicken and 1,1/2cups water in a heavy based pot. cook for 10 to 15 minutes, or until the meat is half cook.
Add oil ,tomatoes and green chillies and cook for 5 minutes.
then add mashed dal with water.
and cook for 10 to 15 minutes .then sprinkle Garam Masala.