Rinse the toor dal thoroughly in water and set it aside
Set the Instant Pot in saute mode and add oil
Add mustard seeds and let it splutter
Add cumin seeds, dried chili, hing, curry leaves, and garlic. Saute few seconds
Add onions and saute for 3-4 minutes
Add tomatoes, turmeric powder, salt, fenugreek leaves, and green chili
Add the toor dal and water
Set the Instant Pot to pressure cook mode on high pressure
Pressure cook for 8 minutes. Do a natural pressure release for 10 minutes, then do a quick release
Open the lid and squeeze in the lemon juice
Methi dal is ready to be served