Heat oil in a pan and splutter fennel seeds
Add sliced onion and curry leaves
Cook with the pan covered and stir for 10 min
Add sliced tomato and saute till it becomes soft and oil starts appearing on the sides of the pan
Add ginger garlic paste and saute for a min
Add all masala, salt and saute for 2min
Add mushroom and mix well so that the mushroom get coated with the masala
Cook with the pan covered in medium till mushroom is cooked well
Serve hot