Lahiri came agonisingly close to winning the Worldwide Holdings Selangor Masters on Sunday after missing a birdie putt on the last hole which would have forced a play-off with eventual winner Pariya Junhasavasdikul of Thailand.
The three-time Asian Tour winner was delighted with the conventional putter which he put in his bag for two tournaments.
"I've been putting good with the short putter. I holed a lot of long putts than I would normally have with the belly putter. I'm feeling a lot more comfortable with this under pressure, so you'll find out what I'll bring out in September," said the 25-year-old.
"I guess I have to wait a little longer for that win outside of India. I'm really happy with the way I played. It was good to be in this position at the Queen's Cup as well although it was a different story on Sunday.
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"I learned from that. I stayed patient, kept my focus. I made a few mistakes out there but my temperament was much better out there than in the past. I took in a lot of positives," said Lahiri.
"Good for Pariya. I'm happy that he's won. He's been struggling in the last couple of years. He's a good friend. Frankly if I wanted someone to win it apart from myself, it would be him," he smiled.