Cook rice & dal with 4 cups of water (or 2cups water & 2 cups milk) and turmeric
Heat 2tsp ghee in a saucepan, add the tadka ingredients and once the seeds splutter add the cooked rice & dal mixture. Mix well; season with salt & pepper. If the mixture is too dry, add water and simmer for 5 minutes. Cover and rest for couple of minutes.
To make tomato raita:
Heat 1tsp oil in a small saucepan, add mustard and cumin seeds and red chili; once the seeds splutter add chopped tomato. Cover and cook until tomatoes turn mushy.
Season with salt. Remove from heat and let cool for couple of minnutes. Add yogurt, mix well and enjoy with the pongal.