Bhullar, who had shot 23 birdies and just one bogey last week, had a blemish-free 64 with seven birdies, three on the front nine and another four on the back nine.
Bhullar is now within striking distance of becoming the first player on the Asian Tour to win back-to-back tourneys this season. He is banking on the mental strength that he has acquired over the past year or two, to win his second title in two weeks.
'I think I've become a better player after playing the Open in Turnberry. My mental vision towards my goal has definitely changed a lot. Playing on the Asian Tour has also helped me a lot as it taught me how to keep myself in contention week after week,' he said.
Muniyappa set a new course record after firing a sparkling 62. The 32-year-old Indian from Bangalore notched not only his best score of the week after rounds of 69 and 72, but also put himself in contention for his first win on the Asian Tour.
'This is definitely my strongest start since I turned professional. I always knew that I could play golf well and today's round has really shown what I'm capable of,' said Muniyappa who heads into the final round tied for sixth.
Starting the day in tied-11th, Boonchu got off strongly with three birdies starting from the second to the fourth hole. His birdie blitz continued with another at the 11th after the turn.
A magical eagle three on the par-five 15th then moved him up to the top with another closing birdie on the 18th confirming his lead.