Phelps, the Melbourne 2006 gold medallist in the same event, triumphed with a total score of 248.8 points.

The final elimination round saw him beat Scotland’s Neil Stirton, who finished on 247.7 points.

England's Kenneth Parr repeated his bronze medal-winning performance from Glasgow 2014, ending the competition with 226.6 points.

"It's one of the best birthdays," Phelps, who qualified for the final in seventh place, said.

"I can't think of any that have topped it.

"I'm over the moon.

"I never expected this.

"Making the final was my goal, but this is just wow."

Star shooter Gagan Narang of India qualified in third place for the final, but she disappointingly finished seventh.

Commonwealth Games debutant and home favourite James Daly came sixth.

Earlier in the day, England’s Parag Patel and David Luckman defended their title in the Queen’s prize pairs event.

The duo led after day one and sealed victory with a score of 584 points.

Wales’ Chris Watson and Gareth Morris claimed the silver medal, while Scotland’s Alexander Walker and Ian Shaw came away with the bronze.

It completed another Home Nations podium sweep.

"We've been planning for it for the last four years," Patel said of his and Luckman’s victory.

"We got a bit beaten in the 900 yards, and we lost more points than we were expecting.

"I think we shot better in the 100 yards than the 900 yards."

The last medal event of the day saw India's Heena Sidhu come out on top in the women's 25m pistol event with a Commonwealth Games record.

Sidhu, who had already won a silver medal in the women’s 10m air pistol event on Sunday (April 8), won with a score of 38 points.

"I'm very happy," she said.

"I'm feeling really good. 

"This is my first medal in this event.

"This is a new event for me and medals like this improve your confidence and tell you that you are good at it."

Australia's Elena Galiabovitch finished second with 35 points and took the silver medal.

Completing the podium was Malaysia’s Alia Sazana Azahari, who amassed 26 points.