1. Mix ingredients 1-4 and leave to marinate for 4-8 hrs.
2. Grind ingredients 5-16 with some water to a smooth paste.
3. In the pressure cooker, heat ghee, fry onions, cinnamon stick, elaichis/cardamom and then add the ground masala little by little - frying well.
4. Then add chicken pieces & potatoes and stir well, add salt, fry well for few mins, tossing around gently.
5. Add 1.5 glasses water and wait till it boils - close and pressure cook upto 1 whistle.
6. Separate the water from the cooker and use this water with the water you would cook the rice in (rice should be half the quantity of total water used).
7. Add salt and bay leaves to rice water.
8. When rice is done, make alternate layers of rice and the chicken, rice at the bottom & top.
9. For each layer sprinkle a bit of the mix described in ingredient 24 above, ending right on top.
10. Close and steam for lil time on low flame

Note: Some people like to place some boiled eggs (or halves) in the layers too; try it!