how to cook or make -Chicken Curry North Indian Style

My own, mostly from mom's but synthesized with recipes from other friends.
Quantity Ingredient
1 lb. Chicken-drumsticks, thighs, breast pieces
1 small carton Plain yogurt
2 medium Onions very nely chopped
4 tbl Vegetable oil
2 Cloves
1
2 tsp Mustard powder
2 pods Cardamom
1
2 tsp Cumin powder
1 tsp Garam Masala
1 tsp Chili Powder
1
2" piece Ginger
4 cloves Garlic
1
3 tsp Coriander Seeds
to taste Salt
1
2 tsp Freshly ground pepper
Method
1. Remove fat from the chicken and then salt and pepper it. Sprinkle with
chili powder. Add yogurt and mix well until the chicken is covered
liberally with yogurt. Use your hands. Set aside for 1 hour before
cooking. If kept in the refrigerator, set aside for at least 4 hours.
2. Heat oil in a large heavy pan. When oil is hot, add mustard seeds, if
you are using them. Add cloves, cardamom, and coriander seeds and
fry for 30 seconds.
3. Add the onion and fry for two minutes until the onion beings to turn
brown. Lower heat to medium.
4. Add the ginger and garlic paste and fry for 4-6 minutes.
5. Add mustard powder, if using it, add Garam Masala, and add cumin
powder.
6. Brush excess yogurt o the chicken and put it in a large pot. Add
ingredients from the frying pan. Cook uncovered over high heat for 4
minutes.
7. Reduce heat to low and cover. Cook for 25 minutes or until the chicken
is tender, stirring every 5 minutes.
Important note: When chicken is cooked with a cover on the pot, it
releases water that becomes a part of the sauce. If after 10 minutes, there
isn't enough sauce in the pot, add 1
4 cup water. Conversely, if there is too
much liquid in the pot, cook uncovered until the liquid evaporates.
Variations: There are several variations to the above recipe:
1. Leave out the yogurt. Add 1
4 cup of water just before turning the heat
to low and covering the pot.
2. Boil two potatoes for 10 minutes before slicing them thinly. Add sliced
potatoes to the pot when you start cooking the chicken.
3. This variation is usually called \Malai Chicken" or literally \creamy"
chicken. Leave out the yogurt. When the chicken is 3
4 done, add one
small can of tomato paste. Just before removing add a small carton of
whipping cream, and cook for a few minutes.