Medal hopeful Saina faced tough resistance from Brazilian player Lohaynny Vicente but displayed her experience and skills at crucial junctures to post a win 21-17, 21-17 in the first match of her Rio campaign.
Another shuttler Sindhu marked an easy win in the women’s individual competition by beating Laura Sarosi of Hungary 21-8, 21-9.
Similarly Srikanth started his Olympics campaign in superb fashion, winning 21-11, 21-17 against Mexico’s Lino Munoz in men’s singles category.