LUCKNOW, May 16 -- Sensational upsets on Thursday left top players in the girl's section, including top seeded Shaivl Gaurav Dalal in the ITF J30 Lucknow Tennis Tournament, struggling under a hot and humid condition at the Vijayant Khand Stadium here. Sixth seeded Pranith Reddy too faced an upset in the boy's section. The day began with second seeded in girl's singles Aaradhya Meena, who shocked second seeded Shaivl Gaurav Dalal 7-6 (4), 6-2 in straight sets but not without facing a tough challenge from her experienced rival. But the biggest upset came thereafter when unseeded Deepshikha Vinayagamurthy knocked out top seeded Saiyette Varadkar 2-1 after winning the first set by 6-2. Varadkar bounced back superbly to win the second set by 6-1 and drew the parity. But in the decider Vinayagamurthy didn't let any opportunity go out of her hands and dominated the proceedings to win the set and match by 6-2. In the boy's singles quarterfinal, Reddy came from behind to beat sixth seeded Vyom Shah 3-6, 6-2, 6-3 later in the day....