Press SAUTE mode on Instant Pot. Add oil ,Once hot, add cumin seeds ,let them splutter.Next add ginger garlic paste , green chilies and onions and saute till onions turn soft.
Add diced potatoes and cook for 2-3 minutes till they are semi cooked(to avoid sticking to the pot add 1/4 cup water).**Note:Potatoes should be semi cooked because cabbage takes less time to cook compared to potatoes.
Next add spices like turmeric powder ,coriander powder ,red chilli powder ,garam masala ,salt ,remaining water and mix well.Make sure to scrap of any spice if sticking to the pot to avoid BURN alert.
Next add the shredded cabbage ,peas, mix well.Add extra 2 tablespoon of water at this stage if you want.Close the lid on the pot, and turn pressure valve to SEALING position.
Set the pot to MANUAL/PRESSURE COOK (High Pressure) and set timer to 1 minute.When the instant pot beeps ,Do a QUICK RELEASE(QR)
Remove lid away from you, sprinkle coriander leaves and lemon juice ,Mix well.Cabbage Potato Peas curry is ready, serve with hot with chapatis, roti & parathas.