Q1. What does the six-digit alphanumeric HUID mark on BIS-hallmarked gold jewellery stand for?
Explanation
HUID stands for Hallmark Unique Identification Number — a six-digit alphanumeric code traceable through the BIS Care app. It certifies gold purity (e.g., 22K = 91.6% pure gold) and protects consumers from substandard gold.
