Jones took full advantage of his Australian Club course knowledge, also shooting a 68 to move to seven under par.
US Ryder Cup team are bidding to win the trophy for the first time since 2008.
Lahiri says the first EurAsia Cup meant a lot to his confidence.
Delhi's Vani Kapoor who finished with a total score of 146 lies second.
The second position is held by Ankita Tiwana who carded one-over 72.
Chawrasia, who is currently ranked fourth in the Order of Merit with earnings of $318,472, will next contest at the Ho Tram Open here from December 3 to 6.
Lahiri, who recently became the first Indian to play in the International Team at the Presidents Cup, has had a power-packed 2015 season.
McIlroy accumulated a total of 21-under 267 (68-68-65-66).
Gangjee went flat on the final stretch, Chawrasia unraveled with two double bogeys.
Anirban Lahiri says he felt discomfort with his knee.
Chawrasia shot four birdies on the back-nine to get to nine-under 207 overall.
He earned $405.84 for his performance at the $50,000 Asian Development Tour (ADT) event.
The 29-year-old Californian also recorded four birdies and a lone bogey to post an 11-under total of 131.
Lahiri improved his performance and took his two-day total to four-under 140.
I listen to my coaches and my team-mates, the people around me, and I don`t really listen to what a lot of people out there are saying because a lot of it is rubbish.