On a super Friday, Chawla cued past Chen Zifan of China 4-2 in the pre-quarters and then outplayed Malaysian cueist Moh Keen Ho 5-3 in the last-8 encounter.
Chawla, who lost to Pankaj Advani in the snooker nationals this year, will now face Chuan Leong Thor of Malaysia in the semifinal clash.
The other Indian in the fray, Dharminder Lilly, however, could not get his name on the scoreboard, surrendering meekly to Chuan Leong Thor of Malaysia 0-4.