What is the difference between kandarulapannudal and amsai during bhojyasanam? What is the procedure for doing it?

Offering food to Emperuman is called kandarulapannudal or amsai so both are the same. Food has to be offered to Emperuman like how a mother feeds food affectionately to a child. As he graces the food, it is called kanduarulapannudal.