Applicability of excise duty

PLEASE SOLVE MY QUERY.

I AM TAKING FINISHED PRODUCTS(UTENSILS)  FROM DIFFERENT MANUFACTURING UNIT AND WHEN I RECEIVED THEM IN MY WAREHOUSE,THEN I PACK THEM AND PUT MRP LABEL ON THEM AND MY BRAND STICKER ON IT.

IN SOME OF PACKING BOX I PUT DIFFERENT PRODUCTS RECEIVED FROM DIFFERENT UNIT AND THEN PACK AND PUT BRAND STICKER AND MRP LABEL ON IT.

SO ARE THESE PRODUCTS ARE DUTIABLE UNDER EXCISE LAW OR NOT?