Lahiri did not quite manage the kind of a low round he had envisaged for the final day but he managed a Top-10 finish after aggregating 13-under 275.
Starting the day at 12-under, Lahiri carded four birdies and three bogeys in the final round at TPC Kuala Lumpur to slip to tied 10 from overnight sixth.
With another no-cut event coming up in Korea next week, Lahiri has a good chance to give himself the early momentum for the new season.
The Indian maintained his fourth place at Asian Tour and qualified for the WGC-HSBC in 10 days time. The top four on Asian Tour Merit list qualify for the USD 9.5 million WGC- HSBC, where the field is 78 and there is no cut.
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Lahiri will play the CJ Cup @ Nine Bridges, Korea next week, while Chawrasia heads home and comes back for WGC-HSBC in Shanghai the week after. Lahiri will head back to US after Korea.
But behind him, Keegan Bradley (67) moved ahead from T-4 to second at 20-under 268 while Xander Schauffele (72) dropped from second overnight to T-3rd with Korea's Sung Kang (71).
The big gainer on the final day was young Australian Cameron Smith (64) as he leapt from Tied-10th to Tied-5th with Hideki Matsuyama (71).
That he ensured on the back nine with back-to-back birdies on 13th and 14th and yet another on 17th, but in between he dropped a shot on 16th.
At 13-under, he was tenth alongside Rafa Cabrera-Bello (69) and Peter Uihlein (69), and one spot behind the trio Paul Casey (65), Danny Lee (67) and Lucas Glover (68), who were 14 -under. Two-time defending champion Justin Thomas (67) was Tied-17th.
"I actually made a lot of bad swings which were unnecessary. I wasn't playing my natural game and then I just got behind it and kind of let the momentum go. I was happy to get that back, but again, 16, 17, 18th holes, I played in even par and that's been my weakness this week.