In a pot heat enough water, once water start to boil add little bit of salt. Add 6 cups of chopped palak. Switch off the gas and let the palak sit in hot water for 5 minutes.
Drain in a colander and place under running cold water to stop it from cooking further.
In a pan heat oil. Add chopped onion. Fry till the onions strats to brown. Add Ginger garlic paste. Fry till the raw smell goes off.
Add chopped tomato. Cook till the tomatoes are softened. Add all the spices. Cook until the oil starts to separate from sides.
Add green peas. Saute for 4-5 minutes along with spices.
Add blanched palak/spinach. Mix well and saute for 5 minutes.
Add water as per required consistancy. Bring it to boil.