In a pan add 1 tsp oil and 1 chopped onions.
Next, add 1 tsp ginger-garlic paste and mix them well.
Add 1 slit green chilli and cook for 2-3 mins in medium flame.
Next, add tomato puree ( of 2 tomatoes ) and mix them well.
Next, add 1/2 tsp chilli powder, 1/4 tsp garam masala, 1/2 tsp corainder powder, 1/4 tsp turmeric powder salt and boil this mix until the raw smell goes off ( around 7-8 mins in medium flame)
At this stage, dissolve 1 tsp of corn flour in 1/2 cup water and add it inside the tomato mix.
Make small pieces of the mushroom fry we have made and add it inside the mix.
Cook it in medium flame for 5-6 mins until the gravy gets coated nicely.
Squeeze a half lemon gently over and give it a stir.
Garnish it with chopped onions and coriander leaves. It is done.