Aiken, the overnight leader, carded five birdies at Jaypee Greens Golf Club in his final round to finish at 23-under 265 and pick up his second European Tour victory.

"I want to dedicate this to my wife Kate -- being the wife of a sportsman is not easy and she supports me so much -- so this one's for you, Kate," said Aiken.

India's Gaganjeet Bhullar charged up the leaderboard with a final-round 64 and ended alone in second place at 20-under -- two strokes ahead of second-round co-leader Wen-Chong Liang, who shot 69 for the second straight day.

Thailand's Kiradech Aphibarnrat (69) took fourth place at 17-under, Seuk-Hyun Baek (66) placed fifth at 16-under and David Drysdale (71), Scott Hend (70) and David Horsey (67) tied for sixth at minus-15.

Tommy Fleetwood (71), Julien Quesne (70), Victor Dubuisson (67) and Himmat Rai (65) ended in a tie for ninth at 14-under, while Magnus A. Carlsson (69), Emiliano Grillo (65), Joonas Granberg (72) and Gi-Whan Kim (69) finished knotted in 13th at minus-13.

Chapchai Nirat, the other second-round leader, shot even-par 72 for the second straight day and finished in a tie for 17th at 12-under.

First-round leader Chinnarat Phadungsil carded a final-round 70 and ended in a tie for 23rd at 11-under. The 24-year-old former European Tour Qualifying School graduate used an inward 28 to grab a 5-stroke lead on Thursday -- one shot shy of the European Tour first-round record -- but failed to break 70 for the remainder of the tournament.

Thailand's Thongchai Jaidee, the highest-ranked player in the field at world No. 59, shot 69 on Sunday and finished at 8-under.

Aiken fired the low round on Saturday (62) to grab a 3-stroke advantage, one he would not relinquish over the final 18 holes. The 2011 Open de Espana winner opened Sunday's round with a par before tallying birdies on Nos. 2 and 5.

Bhullar, meanwhile, got off to a scorching start with birdies on the first three holes and an eagle on the par-4 fifth, but bogeyed the eighth to fall four shots off the pace.

Liang opened with three birdies in his first five holes, but he too was four shots behind after a double bogey on the sixth. The 2007 Singapore Masters winner promptly halved the deficit when he aced the par-3 seventh with an eight iron, but failed to get any closer, carding two bogeys and a pair of birdies on his inward nine to finish at 18-under.

Bhullar continued to apply the pressure, tallying four birdies on the back end to close at 20-under, but Aiken didn't relent. The South African picked up shots on both back-nine par-5s and rolled home a 30-footer at the last to secure the 3-stroke victory.

"These guys kept coming at me today -- Liang on the front nine and then Bhullar made some amazing birdies coming in," said Aiken. "It was by no means a walk in the park."

NOTES: Liang was seeking his second European Tour victory ... Drysdale was searching for his first European Tour title in his 291st attempt ... Phadungsil is a three-time winner on the Asian Tour ... S.S.P. Chowrasia, who won this event in 2008 and 2011, tied for 67th at 2-under ... Defending champion Jbe Kruger, who earned his first European Tour win at this event a year ago, shot even-par over the first two rounds and failed to make Friday's cut ... The tournament was held at Jaypee Greens Golf Club for the first time. DLF Golf & Country Club staged the event the previous three years ... This event was tri-sanctioned between the European Tour, the Asian Tour and Professional Golf Tour of India.