With Saina’s win, India’s medal tally has risen to 66 including 26 gold, 20 silver and 20 bronze medals.
In an exhilarating contest, Saina won 21-18 23-21.
The triumph marked a remarkable end to her CWG campaign this edition.
She was the pillar of India’s gold-winning campaign in the team championship earlier, playing every one of the singles matches due to Sindhu’s ankle injury.
She had earlier claimed the 2010 Delhi Games gold.