Take all(except coconut)the ingredients listed under 'to roast and grind' in a pan roast for few mins until slightly golden then add coconut.
Fry till golden brown. Transfer this to a mixer jar, add little water and grind it to a fine paste. Set aside.
Heat oil add kalpasi, curry leaves, garlic and sauté for few mins. T
hen add onion and sauté till transparent then add tomatoes.
Sauté till mushy, let the raw smell leave. Now add the masala paste.
Cook for few mins then add required salt.
Cook in low flame until it comes like a thick mass.
Take clean mushroom, add red chilli powder, garam masala powder mix well and add it. Mix well. Cook for few mins, it will leave out water.
Now add little more water and cook till it becomes like a sauce.
Serve Mushroom Masala with rice / roti.