Press the 'SAUTE' button, and set it to 'NORMAL'. Once it displays, 'HOT', then add 2 tablespoons of oil or ghee, let it heat up a bit, Add cashew nuts, roast until golden brown, set aside.
Add whole spices, saute for a few seconds until the spices are fragrant.
Add sliced onions, saute until the onions turn golden brown.
Add diced tomatoes, cook until they soften.
Next, add the vegetables, mix well and cook for another 2-3 minutes.
Add the mint paste and turmeric, saute for few more minutes until most of the moisture is lost.
Next, add salt and garam masala and mix well
If you have browned bits stuck at the bottom of the pot, deglaze it with about 2 tablespoons of water to avoid a potential 'BURN' error.
Add the drained rice, saute gently until the rice is coated with the paste.
Rinse the blender with 1/2 cup of water to extract any remaining mint paste and add it to the pot. Add the remaining 1 cup of water, mix well. Make sure the rice is submerged under the liquid.
Check for seasoning, the water should taste salty. Add more salt if needed.
Press 'CANCEL' to switch off the "SAUTE' mode. Close the lid of the Instant Pot. Set the valve to 'SEALING'. Pressure cook on high for 4 minutes. It will take some time for the pressure to build up (about 9 minutes), after which the timer will begin.
Once the cooking cycle is complete, let the pot depressurize for 10 minutes. Then do a quick release of the leftover pressure as per the manufacturer's instructions. Press 'CANCEL' and switch off the IP. Once the silver pin drops, turn the knob to 'VENTING' and open the lid away from you.
Sprinkle lemon juice, and roasted cashew nuts (reserve a few for garnishing), Fluff mint coriander rice with a fork.