Heat the tawa on high heat. Once it’s hot just add chopped capsicum and keep stirring add few drops of water and heat them for a minute more. Remove and place aside.
In the same pan add butter or oil add ajwain seed and cumin seed. Once they crackle add they chopped onion and coriander leaves. Add the ginger garlic paste and sauté till the onion turns light brown.
Now add the capsicum again and sauté. Once capsicum softens add the tomatoes.
Sauté and add all the spice powder, sugar and salt except chat masala and amchur powder. Cook until tomatoes soften. Add a little water if required.
Once all veggies soften mash with a potato masher. Allow the mixture to dry.
Finally add the mushrooms and keep stirring. Once the mushroom changes their color and texture, adjust the gravy to your liking. Turn off the stove.