Put chopped onion, coriander leaves, mint leaves, green chilli, ginger and garlic in a blending jar.
Add little water (1/4 cup) and blend it into a smooth paste.

Heat oil, deep fry the finely chopped onions till it turns golden brown.
Take out the fried onion on the kitchen towel to absorb extra oil.

Prick the boiled eggs with a knife and cut the boiled potatoes into two pieces each.
Add little turmeric powder, red chilli powder, salt in the eggs and potatoes, mix it properly.
Heat little oil in a pan and shallow fry the eggs and potatoes for 2 minutes on medium flame.
Take out the fried eggs and fried potatoes from the pan, keep it aside for further use.

Put 2.5 liter of water in a pan, let it come to boil.
Add washed rice, 4 green cardamom, 1 black cardamom, 1 javitri, 1-inch cinnamon stick, 1/2 tsp salt.
Add 1 tsp ghee, mix it and cover the pan, boil the rice on high flame until it is 70% cooked.
Turn off the flame and drain the rice properly

Heat oil in a pan, add remaining whole spices and green chilli, fry it for 20-30 seconds.
Add blended masala paste, turmeric powder, red chilli powder and salt to taste and mix it
Cook it for 2-3 minutes on medium flame, keep stirring in between.
Reduce the flame to low and add curd into the masala(whisk the curd before use), keep stirring.
Add shahi biryani masala and mix it, cover the pan and cook it for 3-4 minutes on low flame, turn off the flame.