Pallikal and Joshana rallied to beat New Zealand's Joelle King and Amanda Landers Murphy 8-11, 11-5, 11-1 at the National Squash Centre.
Hosts Malaysia was the the other country to participate in the three-day event, seen as a warm-up to the next month's Commonwealth Games.
It was Pallikal's second title in as many days after she won the mixed doubles with Saurav Ghosal.
The Indians put up a commendable show considering they are busy playing singles for major part of the season.
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"I am glad to have won the doubles too. We started off slow today but got better as the match progressed. Joshana played some amazing shots to shock our opponents," Pallikal told PTI.
She alongside Joshana stunned the mighty Malaysian pair of Nicol David and Low Wee Wern in the semifinals yesterday.
"The win here does a lot of good to our confidence going into the Commonwealth Games. Winning there is our main aim and this tournament helped us understand where we stand in the pecking order. In top Commonwealth nations, only England and Australia were not here. It was a good test overall," said the singles World No.10.
"It is tough but you have to switch off switch on when necessary," Pallikal added.