LUCKNOW, Oct. 28 -- Arya Singh of Uttar Pradesh pulled off an upset to reach the quarter-finals of the Braj Mohan Lal Tiwari Memorial AITA Championship Series Under-18 Tennis Tournament, while Ariz advanced after winning a tense tie-break, at the SDS Tennis Academy here on Tuesday. Top seed Vanshraj Jalota and second seed Faiz Kidwai also cruised into the last eight with dominant straight-set victories. Unseeded Arya Singh stunned eighth seed Nilotpal Singh 6-1, 6-1. Playing aggressively from the outset, Arya gave his opponent no opportunity to recover in either set and sealed the win in straight sets. Ariz defeated fellow Uttar Pradesh player Arnav Srivastava 6-1, 7-6 (4). After comfortably taking the opening set, Ariz faced a strong fightback in the second, but held his nerve in the tie-break to secure his quarter-final berth. Fifth seed Aarav Bhaskar overcame Dhruv Singh 6-1, 2-6, 6-1 in a three-set contest. Aarav dominated the first set, lost momentum in the second, and then produced a strong comeback in the decider. Bakshi Ka Talab (BKT) Inter College dominated the District Junior Kho-Kho Championship, winning both boys' and girls' categories titles. In the boys' category, BKT Inter College finished at the top after winning all their league matches. St. Xavier's Inter College placed second....