Jitu Rai and Heena Sidhu gave India their first gold medal of the ISSF World Cup Final in New Delhi, clinching the top honours in the 10m air pistol mixed team event on the opening day of competitions.Rai, a Commonwealth and Asian Games gold-medallist, and Sidhu, former Commonwealth Games gold-winner, picked up their third gold together in the mixed team event, being held officially for the first time at an ISSF World Cup.The mixed team competitions were organised as test events in the World Cups held earlier this year and will be making their Olympic debut in the Tokyo 2020 Games.France secured the silver medal, while China settled for the bronze medal in the event.