Gangjee and Kumar shot scores of 65 and 66 in round three to be joint leaders at eight-under-208. Sri Lankan Anura Rohana returned the tournament's best score of eight-under-64 to be tied third along with Kapurthala's Gaganjeet Bhullar at seven-under-209.
Gangjee (72-71-65) made his way up to the top of the pack from overnight tied sixth position after a brilliant seven-under-65.
Gangjee, a former winner on the Asian Tour, made an early charge with birdies on the first three holes. The 36-year-old almost holed out his tee shot on the par-3 third where the ball stopped inches from the pin.
"I made maximum use of the par-5s today as I was five-under on the four par-5s with three birdies and an eagle. I hit some good approach shots and landed it within 10 feet on a lot of occasions and also converted those putts. The conditions were relatively easier on day three as the wind wasn't a factor," Gangjee said.
"My best shot of the day was probably the cut shot around a small bush on the 16th that set up the 10 feet eagle putt. I've missed three cuts in a row but I'm looking forward to a top finish this week," he said.