Soak 1 cup rice & 1/4th cup urad dal in cold water in the morning, till evening. Also soak upma rava, bengal gram dal, fenugreek seeds in another vessel from morning till evening. Then grind all the soaked ingredients with sugar adding water little by little. The consistency should be semi-liquid. It shouldn't be too watery. Add salt according to the desired taste. Keep it covered & leave it to ferment overnight. Now your Dosa dough is ready to go onto your pan. Take a flat pan. Apply little oil to it. Let the pan become hot, but not smoky. Take a round server & carefully spread the dough over on the pan evenly. Spread out a thin dosa. The diameter of the dosa depends on how large or how small you want your dosa. Then add a little oil to it & let it roast a bit then turn over to the other side & let it roast too, till the dosa turns golden brown, in colour. Serve the dosas hot with Coconut Chutney/any spicy Tiffin Powder.