Make a paste out of the ingredients listed under biryani masala and keep aside.
Press SAUTE mode on Instant Pot. Add ghee/oil in to the POT and add Bay leaf,star anise.
Add in the sliced onions and fry till the onions are soft. No need to brown the onions.
When the onions are soft, add in the chopped tomatoes. Fry till the tomatoes are cooked and mushy.
Add biryani masala paste to the POT and cook for a minute. Add in the turmeric powder and salt and saute for a minute more.
Add in the chopped veggies and fry for 2-3 minutes. Add in the chopped coriander leaves and mint leaves. Fry for a minute.
Add water,washed Basmati Rice,salt and give a stir.
Press CANCEL button on Instant Pot
Close the lid on the pot, and turn valve from VENTING to SEALING position.
Set the pot to MANUAL/PRESSURE COOK(High Pressure) and set timer to 6 minutes
Do a QUICK RELEASE(QR)(Wait until silver button on lid drops).BE CAREFUL OF THE HOT STEAM.
Remove lid away from you,mix well and fluff with a fork or spoon.
Vegetable Biryani is ready. Serve hot with kurma or raita or yogurt.