Add the mushroom washed to the pan and cook until the mushrooms become soft ( approx. for 3 min)
Now add the basmati rice to the pan sauté till the rice gets dry now add water . let it boil and the rice will be half cooked at this stag add milk and cover the pan.Let thewater boil add salt .Check salt before you cover the lid.
Now close the lid and wait till the whistle is about to come low down the flame and cook for 10 minutes.
Now before you convert to a serving pan mix the chopped capsicums and serve.
Serve it with Onion Rita to cool off the spices in this Biryani.