Among the numerous benefits that will follow, this win could also earn Lahiri the coveted invite to Augusta Masters in April, as he moved to top-50 of the world.
When the new rankings come out tomorrow, Lahiri could well be inside the top-40 and he needs to be inside top-50 till the week before Masters to make the grade for the year's first Major. His stunning show in 2014 and a great start in 2015 could even earn him an invite before that.
"I think I've got a bad habit of making it hard for myself, but I'm happy I got over the line, as ugly as it was towards the end," he said.
"The Masters is definitely one of my targets. I don't know how far I'll move up, but I'm pretty confident now with this win I should have a pretty good chance," he added.
More From This Section
Lahiri also takes the early lead for Asian Tour Order of Merit and moves to seventh on Race to Dubai standings and also gets an exemption to European Tour till end of 2017.
In contrast, Wiesberger, who began the day with a five-shot lead over fifth placed Lahiri, opened with two birdies, but a double bogey on par-5 fifth, where Lahiri birdied, and then three bogeys between 13th and 17th saw his lead evaporate and leave the Indian a deserving winner.
Lahiri (68) totalled 16-under to edge out Wiesberger (74) by one shot.
Only Jeev Milkha Singh (4), Arjun Atwal (3) and Chowrasia (2) have won European Tour titles before Lahiri.