Playing dazzling snooker, Faisal, who shocked title favourite Aditya Mehta in the quarter-finals, demolished Delhi-based Pushpender Singh of Railways 5-0 in the best-of-nine frames semi-final.
Bhopal-based Railways cueist Chawla overcame Sourav Kothari of PSPB 5-3 in a tight last-four contest.
Asian Championship bronze medallist Chawla led 2-1 after dropping the opening frame that included a brilliant 89 break in the third frame in reply to Kothari's 76 in the first. He went ahead 3-2 but Kothari drew level to set the stage for a humdinger.
Results: Snooker: Semi-finals: Kamal Chawla (Rlys) bt Sourav Kothari (PSPB) 9-84(76), 58-33, 89(89)-0, 24-66(47), 57(40)-43, 49-60, 62-31, 59-36; Faisal Khan (Rlys) bt Pushpender Singh (Rlys) 64-42, 71(53)-9, 74(41)-39, 63-14, 76(76)-0.