World No.21 Chinappa blanked 183rd ranked South Korea Song Sunmi 11-9 11-7 11-7 at the Yeorumul Squash Courts.
Soon after, World No.12 Pallikal stepped on the court against 150th ranked Jinyue Gu of China. The highest-ranked Indian slipped a bit before prevailing 11-6 10-12 11-6 11-4.
The teammates now face each other in the quarterfinals tomorrow, less than two months after winning India's first ever squash medal at the Glasgow Commonwealth Games, where they won the women's doubles gold.
Both Pallikal and Chinappa have called the draw "unfortunate" and the former had even considered a pullout claiming "manipulation".
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The face-off will be pulsating nonetheless. Both players know each other's game very well and the difference in their rankings is going to count little.
Top seed Saurav Ghosal and compatriot Harinder Pal Sandhu will also be seen in action later today when they play their second round matches, effectively the pre-quarterfinals. Both were handed byes in the first round.