Take broken matta rice in a colander. wash well till the water turns clear. Drain the water and keep it aside
Add Broken matta rice, cold milk, and sugar; mix well
Make sure the vent is in the “sealing “ position. Press “steam” mode and cook for 30 minutes. Do natural pressure release
After pressure subside naturally carefully open the pot and mix well
Make sure rice is perfectly cooked
Turn on IP in “saute mode” and cook for 15 more minutes. Boiling payasam in an open pot makes it rich and flavorful so don't skip this step. Mix well in between