First in a pot add cooking oil and add all the chopped onion init.let it golden brown.Add all garam masala red chillies,turmeric powder and ginger garlic paste.let it cook for 5min.

Thn add chicken in it.let it fry for 5 mins thn add tomatoes in it.add salt in it.

Put 2 cups of water in it.let it cook until chicken done 50 %.when chicken done 50% add potatoes in it.let it cook for more 10 mins.

Add yogurt in the mixture and bhonify it.biryani mix is ready

Now for rice soak sella rice for 4 hours.after 4 hour put 8 cups of water to boil rice add salt in it.when rice become tender strain it out

In a cooking pot first put biryani masala thn rice phir biryani masala thn rice.

Spread green chillies, coriander leaves and mint leaves.Put it on dum for 15min.