Ashwani Gujral of ashwanigujral.com said, "The best time to buy Hindalco Industries is when aluminium prices are crashing. That was the Rs 80-100 zone and from there, it becomes a nice investment. The risk of metals here is that good news and highs in metal stocks tend to get made together. So they are trading buys." "In Hindalco maybe Rs 190-195 is a good stoploss and if rise in metals continue, probably Rs 240-245 is possible, but it is not an investment, it needs to be reviewed. Strict risk management needs to be in place," he added. ALSO READ: BSE Sensex slides 190 pts on profit-booking today Mitessh Thakkar: Buy Hexaware Technologies, GSFC, NTPC Ashwani Gujral says Buy Voltas, Gruh Finance, IGL; sell Punjab National Bank, Delta Corp