Wash and soak basmati rice for 15 minutes.In the mean time,wash and peel the baby potato. Keep them in a bowl of water to avoid discoloration.

Boil 6 cups of water in a bowl. Add the soaked basmati rice, whole garam masala and required salt for rice. Let it roll boil in high flame till it's 80% cooked.While the rice is boiling, you can make the gravy part. Remove the rice to a plate using a colander and drain the excess water. Spread the rice in a plate.

Heat oil + ghee in a kadai. Saute the whole garam masala(Cinnamon, cloves, cardamom, bay leaf and black stone flower) for a minute. Add the turmeric powder, sliced onion, green chilli. Saute for a minute. Add baby potato, ginger-garlic paste and required salt. Saute till raw smell of ginger garlic paste goes off. Take care it splutters everywhere.

Cover the kadai with a lid tightly and cook for 10 minutes in very low flame.Stir it once or twice in the middle. In this 10 minutes, onions would be caramelized and potato will be cooked soft.

Now add curd/yogurt, red chilli powder and garam masala powder. Mix well. Mixture will become watery.So boil for 2 to 3 minutes in medium flame till it becomes semi gravy with little moisture in it. You can cover & cook if needed. By this time, potato would have cooked soft. You can check it by breaking the potato with a spoon.

Then spread the potato mixture in the kadai.If needed add water to it. Layer the cooked basmati rice evenly over the potato gravy, chopped coriander leaves and sprinkle saffron soaked milk. Cover with a lid tightly and keep the flame very low. Put in DUM for 10 minutes.

Open the lid after putting DUM and fluff the rice gently with a fork.Serve hot with raita and chips !