For making rice:
1)Half boil rice.
Soak tamarind in water for 30 minutes. Mash it and strain it through a strainer.
Heat oil in a pan or a kadai.
Add Bengal gram and black gram.
Add rice followed by salt and tamarind water.
Mix well and cover it with a lid and simmer it for 5-7 minutes.
:-Serve hot with Onion Raitha.
For making onion raitha:
1)Beat curd. Add onion, salt, green chillies, ginger and coriander leaves.
Heat oil in a pan and crackle mustard seeds.
Add it to the raitha and mix well.
Refrigerate for 1-2 hours before serving.