Opening Bell: Sensex jumps over 150 pts; Nifty tops 17K; HCL Tech up 2% ahead of Q2 results, PowerGrid 1%

… ; Nifty tops 17K; HCL Tech up 2% ahead of Q2 … investors. Quarterly earnings today HCL Technologies, Wipro, National Standard, Sterling … start Nifty futures on the Singapore Exchange traded 50.5 … a positive start on Wednesday. Tech View: Nifty charts hint …