Big movers on D-Street: What should investors do with Persistent Systems, Mazagon Dock and Orient Cement?

Sensex and Nifty reach records; globally positive. Persistent Systems rose 3.63%, RSI strong, support at 4500/4400. Mazagon Dock up 20%, targets 5200-5500, support 4000, RSI bullish, Higher High, Higher Low trend. Orient Cement rose 0.082%; needs 320 breakout for 350, support 290-280. Avdhut Bagkar of StoxBox recommends actions.