Add suji and curd together and mix water as required and o make a smooth paste like idli batter.
Add salt and 2 tsp of oil in it and mix well and let the batter ferment 1 hour.
In a bowl take 1 tsp of soda/eno,1 tsp oil and 2 tsp water and mix well.
Add this mixture in the fermented batter and mix gently.

Divided this better in three part and in part add orgnage food color and second part add green food color. and third part and remine same as white batter.

Boil some water in a steamer and grease the dhokla plates.
When water start boiling pour the batter in 2 greased plates.
Arrange these plates add first organ color better in the steamer and cover the steamer with a lid.
Steam it for 5 minutes on high heat. after and add white batter and again steam for 5 min and now add green batter and steam for 5-6 minutes.