Nifty 500 at open: Hitachi jumps 11% on 64% Q2 revenue surge; Cupid falls despite record high

Hitachi Energy jumps over 11% after Q2 profit rises 21%, while ITI gains over 7%. Amber Enterprises rebounds despite mixed results, as Cupid slides after hitting a fresh all-time high and Ola Electric falls after reporting a 39% revenue decline.