The stock of Hindustan Zinc surged 6 per cent with an above average volume on Tuesday, breaking above a key medium-term resistance level of ₹300 and 21-day moving average. Investors with a short-term perspective can consider buying the stock at current levels. The stock took support at around ₹230 in May 2017 and resumed its long-term uptrend and has been in an uptrend over the medium-term as w...