HONG KONG, Oct 13, 2012 (AFP) - The 24-year-old Bhullar retained his two-shot lead at the Macau Golf and Country Club despite two missed putts from close range on the last two holes.
Thitipun, 20, also shot a 69 to stay in the running at the $750,000 Asian Tour event, while Filipino Angelo Que, Scott Hend of Australia and American Berry Henson entered the final round four shots back.
Three-time Asian Tour number one Thongchai Jaidee's run fizzled following a lacklustre 73, while Bangladesh's Siddikur likewise failed to challenge Bhullar with a 72.
Bhullar, aiming for a second victory within the space of a month, noted his challengers would not go down easy.
"I've won a few times wire-to-wire in India. The goal now is to do it on the bigger stage and on a bigger level," said Bhullar.
"I've been in this situation a few times. I know it's a difficult thing. I'm going to try to do the same things as I did in India and keep it simple. Just repeat what I've been doing the past three days and play percentage golf."
Bhullar's lead could have increased even more if not for the missed the short putts, in all snaring five birdies against three bogeys in his efforts towards a fourth career victory on the Asian Tour.
"That's not the finish I was thinking of. I'm feeling positive and I'm feeling good. I've really improved my driving and it was long and straight today. I'm looking forward to playing well on Sunday," he said.
Leading Macau Open third round scores at the Macau Golf and Country Club on Saturday (par 71):
200 - Gaganjeet Bhullar (IND) 63-68-69
202 - Thitiphun Chuayprakong (THA) 67-66-69
204 - Berry Henson (USA) 67-69-68, Scott Hend (AUS) 65-70-69, Angelo Que (PHI) 68-66-70
205 - Jonathan Moore (USA) 67-68-70, Adilson Da Silva (BRA) 68-66-71, Kieran Pratt (AUS) 66-68-71, Prom Meesawat (THA) 65-68-72
206 - Antonio Lascuna (PHI) 68-72-66, Siddikur (BAN) 66-68-72