Fry methi leaves first in a tsp of cooking oil, till they shrink completely and remove to cool.
Add cooking oil and roast red chillies, coconut, gram dal and hing. Roast till the coconut turns colour. Remove to cool.
Then, add chopped tomatoes, cook till it turns mushy.
Cool all the roasted ingredients before grinding. Just when grinding, add ginger and add salt along with fried methi leaves.
Sprinkle required amount of water and grind to a smooth chutney.
Serve with Idlis or Rice.