1. Soak red gram dal, bengal gram dal, fried gram dal, raw rice and cashew nuts for 1 hour.
2. Then grind them to a paste. Grind coconut, ginger and green chillies and make a paste.
3. Smash curd and make it to a form of butter milk.
4. Add little water to it.
5. Add turmeric powder and salt to it. Mix it well.
6. Heat oil in a kadai, splutter mustard seeds, add curry leaves, then add ginger paste and dhal paste followed by curd mix. Mix them well.
7. Add a little salt. Garnish with coriander leaves.

Courtesy: http://tamilveg.blogspot.com/