Joshi, the only Indian to make the cut this week, is now seven-under 209 and three shots behind the leader Jordan Sherratt (71) of Australia, who recovered from a slow start to stay on track to win his first career title after shooting a one-under-par 71 in the third round at the Taifong Golf Club.
Joshi, who shared the lead after the first round, will need a strong final round tomorrow to win his first pro title outside India.
"I was playing really well but double bogeyed the last hole from the centre fairway. Overall, I felt that I played better. I just need to stay focussed and I think I can go low in the final round. I'll just play my own game tomorrow," said the 22-year-old.
Sherratt, 27, totalled 10-under-par 206 and will need to hold his ground against Thailand's Natthapong Niyomchon, who fired a 69 to trail by one shot in the USD 160,000 event.
Sherratt, who turned professional in 2010, got off to a slow start with bogeys on one and three but steadied ship with a pair of birdies after the turn. Another two more birdies against one bogey earned him a slender one-shot lead heading into the final round.
"It feels good to be in the lead. I didn't play my best on the front nine but I started to feel okay and eased back into the round when I birdied 10 and 11 from 10 feet. The putter let me down a few times today so hopefully I don't three putt as many holes on the last day," said Sherratt.