Place them in a katori and inside a pressure cooker filled with water.
Leave it till 2 to 3 whistles.
After it cools, remove the steamed pumpkin.
Either Mash with Potato Masher or blend them.
A pinch of jeera powder can be added for seasoning
Notes
Steaming is always preferred over boiling as it preserves the nutrients To thin out the puree, breastmilk or formula can be added A pinch of jeera powder can be added to enhance the taste