With a place in the semifinals, India are now assured of at least a maiden Uber Cup bronze.
Saina led India's charge with a 21-17 21-10 win over Lindaweni Fanetri in a 45-minute match before P V Sindhu played out of her skin to eke out a hard-fought 21-16 10-21 25-23 victory over Bellaetrix Manuputty.
Commonwealth Games gold medallist pair of Jwala Gutta and Ashwini Ponnappa then sealed the tie in India's favour with a 21-18 21-18 win over Polii Greysia and Nitya Krishinda Maheswari in the first doubles.
It was the second singles which turned out to be an edge-of-the-seat thriller as Sindhu and Manupatty fought a battle of attrition amid loud cheers of the fans, who chanted 'Sindhu, Sindhu' for the Indian.
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In the first game, Sindhu opened up a two-point lead early on and stretched it to 12-8 and then 17-12 and even though the Indonesian tried to recover, the Indian pocketed the first game comfortably in the end.
However, Manupatty came back strongly in the next as she led 11-7 at the break when Sindhu hit the nets. The Indonesian continued her run after the interval and surged to 18-9 in a jiffy to take the second game and roar back into the contest.
There was little to choose between the two as their fierce battle left them drained. In the end, Manupatty was twice in a position to get it across the Indian but she failed on both occasions. Sindhu, after failing twice, converted the third match point when Manupatty hit long to burst into celebration.