Wash rice and dal well. Soak it together for for 8 hours. Drain the water and add the rice and dal in the grinder and along with it add in green chilli, ginger, cumin seeds and grind to a smooth paste.
Add salt and mix well. Add water and make it to a dosa batter consistency.
Heat a tawa. Take required quantity of batter and make into a thin dosa. Drizzle oil around the edges and cook it well both sides.
Hot crispy protein rice dosa readyGinger chutney and peanut chutney are best combination for green gram pesarattu.