Heat oil fry raw onions, add ginger garlic paste with whole spices, all the dry seasonings, fry well adding little water, add chicken, fry for 5 minutes.
Add yogurt with 1 cup water, cover and cook till thick gravy.
Lastly add grinded allspice, grinded green cardamom, mace and nutmeg, brown onion grinded, saffron and Kewra.