For years, Saina has been hoping to become the first Indian woman shuttler to reach the numero uno status and that dream will be within touching distance when the top seed opens her campaign at the USD 275,000 event against a qualifier on Wednesday.
However, it will be second seed Carolina, the reigning world champion, who will stand in her way, trying to become the first Spaniard to achieve the feat.
The 22-year-old from Guntur rose to World No. 4 on the back of some sensational performances, including winning the China Open crown last year beating two-time Olympic champion Lin Dan and he would look to carry on with his good form when he walks out at the Siri Fort Complex this week.
Srikanth will open his campaign with a clash against Thai Tanongsak Saensomboonsuk, ranked world No. 19. The Indian has a 1-1 record against Saensomboonsuk, having beaten him in their last encounter at the 2014 Hong Kong Open.
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Commonwealth Games champion Parupalli Kashyap, who clinched the Syed Modi Grand Prix Gold in January, will also be a top contender for the title, looking to get back his rhythm after recovering from a string of injuries.
A fit-again Kashyap, ranked 13th, will face Chinese Taipei's Hsu Jen Hao. The Indian had beaten him in the 2013 All England Championship but lost to the same opponent in Badminton Asia Championships last year.