Saute 1 tbsp ginger garlic paste in heated oil now add boneless beef along with two big size bones (only for stock) n fry for few seconds.. then dd salt n turmeric, mix them well..

Add almost 1 or 1.5 litre of water n let it boil once it starts boiling, remove the scum n cover n pressure cook for 15 minutes or (half done)

Now fried the onions, sliced thinly tomato,some mint leaves,dry plums n green chilies. Mix them evenly.

Now heat the oil n add ginger garlic paste n saute it add in garam masala, mace, Nutmeg, bay leaves n star anise and saute till fragrant.. than add half done beef n cook.
(Don't discard the stock)

Now add in all spices (biryani masala, salt,red chili flakes etc) mix n cook for few minutes than add stock n let it cook till water reduces..

Meanwhile we will boil the rice boil the water by adding salt n 1 tbsp whole garam masala.
Than add rice n let them boil(clean washed n soaked for 1 hr)

Now take out 1 glass halftone rice n spread them over fried onion, tomato..

Now add remaining boiled rice(3/4 th) done over it cover n let it cook till done.
Remove the lid n mix evenly..