Firstly, in a pressure cooker add oil and heat it.
Add cumin seeds, let them crackle.
Add finely chopped onions, chopped green chillies, mix and saute until onions turn soft.
Add ginger garlic paste and saute until raw smell disappears.
Add salt, red chilli powder, turmeric powder, mix and cook until the masala is cooked well and oil starts separating.
Add chopped tomatoes, mix and cook the tomatoes until they turn soft.
Cook the onion tomato gravy until oil starts appearing at the sides.
Add diced potatoes, mix well.
Add matar/green peas into it, mix and cook for 4-5 minutes until oil starts appearing.
Add 2 cups of water, chopped coriander leaves, mix well.
Pressure cook the curry for 3 whistles or cook them until they get soft and tender.
Reduce the steam and open the lid.
Aloo matar curry is ready to be served with roti and rice.