Note
You may add fresh tomato puree instead of the tetrapack ones. If adding fresh, you will need about 4 medium tomatoes. Soak them in hot water (blanch) for 5 mins or till skin peels off easily. Peel skin, discard the seeds and puree in a mixer.
If the peas is a little hard, you may boil it separately for 2-3 mins, drain and then add to the gravy.