First in a big bowl mix suji,curd,salt and enough water to make semi thick batter,keep aside for half hour

Now in a pan add oil,crack mustard and pour on suji mix

Now mix baking powder and eno in suji and mix well,do not over mix

Now pour batter in idli moulds and steam in a steamer till they steam perfect,check by a toothpik or knife,if they come out clean it is done,otherwise staeam for a minute next.serve with sambhar.