Take a big bowl.add semolina, salt, rava and curd and required water make idli batter.

Divide into two colour.

Add one or two drop food colour in one part.mix well add eno.and also add eno in white part.mix well.

Take idli mould add 2 spoon white idli batter and then 1 spoon yellow idli batter.

Steam for 3 5 minutes in microwave.

Ready two colour idli.