Crux Biotech India Pvt. Ltd.

What is the accurate HSN Code under GST tax slabs for Distillery Dry Grains Soluble (DDGS) and Distillery Wet Grains Soluble (DWGS) (Cattle feed)?  The Contention of the applicant is that, earlier Central Excise Duty was paid at NIL rate under CETA 2309 and the introduction of GST cannot alter the classification of the by–product.