Boil the sliced pumpkin for 5-7 minutes, till it becomes tender. You can even steam it instead of boiling, for 10 minutes.
Now strain the pumpkin slices, strain any excess water and roughly mash it.
Add all the ingredients to the whisked curd/ yoghurt- mashed pumpkin, chopped onions, chopped green chillies, chopped coriander and mint leaves, coriander cumin powder, whole cumin seeds, salt, black salt,red chilli powder.
And garnish it with chilli powder and coriander cumin powder.Chill it in the fridge for some time, and serve the chilled raita with lunch or dinner, or just have it as a healthy snack/ salad option.