New Delhi, June 13 -- Chinese defence stocks witnessed heavy buying in trade on Friday, June 13, rallying up to 13% amid speculations that the Iran-Israel conflict could drive demand for Chinese defence equipment as Iran vowed to retaliate against the Israeli air strike on Tehran.

The flagship Chinese defence index gained almost 2% in intraday deals, with a majority of its constituents closing in the green. As of the close on Friday, HS China A Aerospace & Defence was up 1.68% to 4,287.21. During the day, the Chinese defence stocks index had topped the 4,300 level to 4,305.97, yet it remained some 13% away from its 52-week high of 4,968.09.

Unmanned Aerial Vehicle (UAV) systems manufacturer AVIC Chengdu UAS was the top index gainer, wit...