LUCKNOW, Oct. 27 -- Aryaj Pandey and Ariz, both from Uttar Pradesh, produced the day's biggest upsets at the Braj Mohan Lal Tiwari Memorial AITA Championship Series Under-18 Tennis Tournament, knocking out seeded opponents to progress in the boys' singles draw. Aryaj defeated seventh seed Arnav Chauhan, also of Uttar Pradesh, 6-3, 6-4, while Ariz overwhelmed sixth-seeded Uttar Pradesh player Rajveer 6-2, 6-0, at the SDS Tennis Academy here on Monday. Fifth seed Aarav Bhaskar of Uttar Pradesh needed three sets to get past fellow UP player Satvik Gupta, winning 7-6(4), 3-6, 6-4. Eighth seed Nilotpal Singh, also from UP, overcame Uttarakhand's Ashwin Chauhan 7-5, 6-0. In other first round encounters, Dhruv Singh beat Avya Shah 6-4, 6-2, Arya Singh beat Sufiyan 6-0, 6-2, Devansh Vij beat Shaurya Singh 6-2, 4-6, 6-1, Arnav Srivastava beat Mannan Kapoor 6-2, 6-0, Ekagra Singh beat Aradhya Agarwal 6-3, 6-2, Adamya Bhadauria beat Atharv Srivastava 4-6, 6-3, 6-4, Virat Singh beat Vaidik Shukla 6-0, 6-1, Tejas Rastogi beat Vaishvik Gautam 6-1, 6-2 and Anay Srivastava beat Fahad Ahmed 6-1, 4-6, 6-1. Lucknow's Ravi Shanker, won the KB Mahana Chess Memorial hosted by Chess Club Black & White (CCBW) with 6/7 points on tiebreak. Kuldeep Shankar finished second. Young Siddhanth Chopra was the star of the tournament winning the best unrated first prize ahead of several rated professional players. Top senior citizens were Saeed Ahmad, Shakiluddin, KK Kharey, UB Singh, Mohd Irfan, Jamal Sir, Vipul Awasthi, RP Gupta and Ambuj Agarwal. Saransh Shukla (4.5 points) was best under-16 player while Ayush Yadav won the junior unrated section with a fantastic 6.5 points. Navya Srivastava was best junior girl and Kunwar Pranav Singh was under-8 champion. Both scored six points. The girls' teams from Bakshi Ka Talab (BKT) Inter College and Seth MR Jaipuria College advanced to the semi-finals of the girls' category in the District Junior Kho-Kho Tournament, at the KD Singh 'Babu' Stadium here on Monday. Along with them, the teams from St Xavier's Inter College and Central Academy also secured their spots in the final four. In the boys' category, the team from Bakshi Ka Talab (BKT) Inter College won both of their league matches. BKT Inter College defeated St Xavier's Inter College by 20-15, and Seth MR Jaipuria Inter College by ten points. Central Academy defeated Seth MR Jaipuria College by 17-10, while St Xavier's Inter College secured a victory over Jaipuria by a margin of 16 points....