Hindustan Zinc shares experienced a notable decline, falling nearly 3% after reaching a 16-month high of Rs 656.35 earlier in the day. The stock's earlier surge was attributed to a record high in silver prices, a key contributor to Hindustan Zinc's earnings. The subsequent dip is largely seen as profit-booking by investors following a significant rally, with the stock up 46% year-to-date and 33.45% in December.