In a wok heat 1/2 cup oil. Add sliced onion and fry until brown. Take out fried onion in a big tray and spread.
In same oil add 1/2 cup more, heat and add meat and ginger & garlic paste, mix well until meat change color. Add salt, coriander powder, whole spices, turmeric and red chili powder and mix well for 5 minutes.

Add yogurt and mix well. On low flame let meat cook for 35-45 minutes add 1/2 cup or 1 cup water if meat is not tender.
Take fried onion and grind it finely. Add it to meat and mix well.
Add 1/2 cup water and mix well. Add garam masala, grinded cardamom, grinded nutmeg & Mace and mix well and let it cook till all meat tender. Add kewra essence / kewra water and cover and let it cook for 5-10 minutes on lower flame.