Wash rice and soak for at least 15-20 minutes.
In pressure cooker, add oil/ghee, once it is hot, add the whole spices and cumin seeds.
When the flavour from the spices starts to come, add thinly sliced onions and saute till light brown. Add finely chopped green chillies if your want.
Add peas and garam masala and mix well. Add red chilli powder if you want spicy pulao.
Drain water from soaked rice , add to onion pea masala. Add finely chopped mint leaves,mix and add water just enough to soak rice.
Cook for 2 whistles after that take off the gas and wait till the pressure releases on its own.
Check for the doneness of rice and serve hot with the curry or yogurt preparation of your choice.