Mix Raagi flour,salt,sugar,and curds in a bowl.(mixing is very imp: don't make it like a paste.it should be like a wet powder)keep aside.
Heat oil in a pan.Add Mustard seeds when it splutters,add urad dal, gram dal,curry leaves.When dals become red add cut onions and chillies.fry it till onion becomes red.
Add mixed raagi powder into it and constantly keep stirring on a low heat till cook soft in the oil.
Then add grated coconut and coriander leaves.mix well again. After everything is cooked remove from the stove.
Serve hot. Tastes good when had fresh.