Hindustan Zinc reported a net profit of Rs 2,481 crore in the March quarter, up 85 per cent from the same period last year on the back of an increase in revenue. The company s topline stood at Rs 6,725 crore in the period under review, up 56 per cent from same period last year, led a 45 per cent year-on-year spike in zinc sales, 44 per cent higher lead sales and a 125 per cent jump in silver revenue. Zinc volumes were up 15 per cent year-on-year, while lead volumes went up 29 per cent, the company said in its release. The firm’s earnings before interest, taxes, depreciation and ammortisation (EBITDA) jumped 98 per cent in the quarter gone by at Rs 3,875 crore.