Divij and Raja dropped the first set but came back strong for a 5-7, 7-6(3), 10-4 win in one hour and 24 minutes in the final against the second-seeded Thai-Kiwi combine.
The Indians split $2480 and earned 80 ranking points each for their win.
Left-handed Divij was playing his second final of the season, having ended runner-up at Kolkata Challenger with Vishnu Vardhan.
Image: Divij Sharan and Purav Raja.
Photograph: Courtesy: Facebook
Dutch coach Louis van Gaal is the 'king of wishful thinking'
David Beckham looks hot and hunky!
Saina knocked out of All-England Championship quarters
A salute to India's forgotten sportswomen
Check out this season's Formula One calendar...