Turn the Instant pot on to the saute setting and add the oil or vegetable broth.
Add in the onion , Carrots, Celery , Pumpkin, Peas, corn, chopped garlic and ginger and give it a stir .
Add salt to taste, cumin powder, turmeric powder, and dried lemongrass powder and saute for 1 minute. Turn off the pot.
Add the Pearl Barley and the broth or water. Cover and set the Instant Pot to manual for 6 minutes with the valve set to sealing. It will take about 8-10 minutes to pressurize before the pressure cooking begins.
Do a quick release (QR), take off the top away from your body. Sprinkle the chopped cilantro. Season with pepper to taste and serve it warm!