Heat 2 tablespoons of mustard oil in a pan until it starts to smoke.
Reduce the heat to low.
Add 1 tej patta (bay leaf), 1 black cardamom, 2 green cardamoms, 4 cloves, 5 black peppercorns, and 1/2 teaspoon of hing (asafoetida).
Fry the spices for about 30 seconds until they become aromatic.
Stir in chilli paste, onion paste and curd mixture that we prepared earlier.
Cook the mixture for 2 minutes over medium heat.
Season with salt according to taste.
Add 200 grams of chopped mushrooms.
Cook for a few minutes on medium flame.
Pour in 1/2 cup of water or mawal water (if using).
Continue cooking until the mushrooms are tender and the gravy thickens.
Garnish with fresh coriander leaves.
Mix and serve hot with naan, roti, or rice.