Thoroughly wash & soak 3 cups of basmati rice for 30mins. Boil water in a heavy bottom pan, add salt, whole dry spices like cardamoms, cloves, cinnamon, black peppercorns & bay leaves, once the water starts to boil and you see bubbles, add the soaked rice and cook it for 5-7 mins or until the rice is half cooked. Keep it aside

Now heat some oil & butter in pan, add cumin seeds, once it starts to splutter, add 1 roughly chopped onion, 3 dry red chillies,fry it for 2 min, next add ginger & garlic, fry it for 3-4 mins, add the almonds/cashews, tomatoes roughly chopped, little salt and cook until the tomato becomes soft and mushy. Once it cools down, add little water & make a smooth paste of it.

Heat some butter in a pan, add the tomato onion paste, cook it for 3-4 mins, next lower the flame add turmeric powder, red chilli powder, coriander powder, garam masala powder & salt to taste, add very little water and cook the masala well for 5-7 mins or until oil starts to separate from the sides

Next add curd and kasuri methi (you can also add some fresh cream), mix everything well for 2-3 minutes, add half cup of water and boiled & chopped eggs, gently mix everything well. Cover and allow it to cook for 5 minutes. Makhni gravy is ready.

For assembling the Biryani, take heavy bottom pan, apply little ghee, add one layer of rice, followed by one layer of anda makhni gravy, sprinkle some chopped coriander leaves, fried onions & slitted green chilies, again put one layer of rice and repeat the process, add some butter or ghee on the top. Finally cover the pan, place it over hot tawa, put some heavy weight on the pan and on a low flame cook it for 10-15 mins and it's done. Serve it hot with raita and enjoy