The top-seeded duo, who also competed at the Paris Olympics, showcased a dominant performance to outclass Li and Wang 21-18, 21-12 in the summit clash that lasted 43 minutes.
Saina lost 9-21, 12-21 in the women's singles clash that lasted just 24 minutes
India had something to cheer about after missing out on a berth in next year's World Cup as they defeated China 3-3 via the penalty shoot-out, after both the teams were locked 2-2 in regulation time, to clinch the bronze medal in the eighth women's Asia Cup hockey tournament in Kuala Lumpur on Friday.
Sindhu and Saina will once again be India's best bet as they look to put up a good show this week.
The Attri and Reddy duo made light-weight of their opponent
Nehwal has had a troubled run in this year as she has now faced exits from a tournament in the first round five times.