Pressure cook the drained green peas in lots of water and salt till done. Drain and set aside.
Heat oil in a saucepan. Splutter mustard seeds and the fennel seeds.
Add the curry leaves, ginger garlic paste and green chillies and briefly fry.
Add in the onion with a little salt and saute till just wilted.
Add the tomato along with the powders and saute till the mixuture is cooked yet crunchy. Sprinkle water if it sticks to the pan.
Add the drained green peas and toss well. Adjust seasoning, simmer for a couple of minutes.
Serve hot with a cup of chai...