In a bowl, whisk yogurt and gram flour together until smooth (no lumps).
Add turmeric and mix well.
Pour the mixture into a pan and add water to make a thin consistency.
Cook on medium flame, stirring continuously to avoid curdling.
Bring it to a gentle boil and let it simmer for 10–15 minutes.
In a separate pan, heat ghee and add cumin seeds and dry red chilies.
Add grated ginger and sauté briefly.
Pour this tempering (tadka) into the kadhi.
Add salt and mix well.
Serve hot as a light and tangy soup.