Place the flattened rice in a metal colander and rinse with water. Once it is moistened nicely. Set aside. Do not rinse the poha for too long else it will turn mushy.
Heat oil in a heavy bottom kadai. Add the mustard seeds and fry till the mustard splutters. Add curry leaves and green chilies to the oil, fry for 10 - 20 seconds.
Now add the sliced onion, peanut, and fry for 1 - 2 minutes or till the onion turns light golden in color.
Add the green peas and fry nicely for the next 5 minutes. Season with salt, sugar, and spices. Stir to combine.
Once the green peas are nicely cooked add the softened flattened rice (chura).
Add fresh coriander, lemon juice, and green chutney. Mix nicely and cover the pan with a lid. Allow the poha to cook for 2 - 3 minutes covered for the flavors to combine well. Turn off the heat.
Serve Matar Poha for breakfast or as a tea time snack topped with aloo bhujia.