LUCKNOW, April 16 -- Unseeded Abhyuday Singh on Wednesday caused a major upset in the AITA Championship Series-7 Under-18 Tennis Tournament, at the Gymkhana Club courts in Prayagraj, outplaying top seed Anuruddh Kumar 6-2, 6-0 in straight sets. Singh dismantled the favorite only after losing two games, blending aggressive baseline play with unerring confidence to signal his arrival as a serious contender to make it to the semi-finals of the boys singles. In other quarterfinals, Meher Khosla rallied from a set down to edge Rohin Raj 3-6, 6-1, 6-4, showcasing resilience under pressure. Kinjalk Srivastava mirrored the comeback spirit, overturning Arjun Sharma 3-6, 6-2, 6-0 after a shaky start. Faiz Ali Kidwai rounded out the UP sweep, outlasting Rishant Jaiswal 6-2, 7-5 in a tight battle. The girls singles quarterfinals saw Niti Dubey cruise past Siona Chikkar 6-2, 6-1, while Airah dominated Tashi Kiran 6-4, 6-0. Madhya Pradesh's Manusmriti Singh and Purva Singh interrupted the UP run, with Manusmriti blanking Reet Singh Patel 6-1, 6-0 and Purva overpowering Siddhi Singh 6-2, 6-1. The boys doubles semi-finals amplified the excitement, all featuring UP pairs. Rishant Jaiswal and Kinjalk Srivastava crushed Samarth Bhatnagar and Aarush K. Vijwal 6-1, 6-2. Rohin Raj and Abhyuday Singh dispatched Neelotpal Singh and Balkrishna D Verma 6-2, 6-1. Vanshraj Jalota and Faiz Ali Kidwai demolished Aman Singh and Amartya Chaudhary 6-0, 6-1 and Anuruddh Kumar and Meher Khosla fought back to beat Aditya Vaibhav and Arjun Sharma 4-6, 6-3, 10-4 in a super tie-break thriller. The AITA Talent Series Under-12 Boys' and Girls' Championships at the Vijayant Khand Stadium here on Wednesday, delivered thrilling quarterfinal drama on Day 3. In boys singles quarterfinals, fifth seed Hamdaan stunned top seed Aarish Sethi 3-6, 6-3, 6-1, while seventh seed Arnav Srivastava upset third seed Avighna Verma 7-5, 6-4. Sixth seed Advik Jain prevailed 6-2, 6-4 over Aarav Verma and fourth seed Asvik Srivastava dominated Pranav Shukla 6-2, 6-1. The girls singles semi-finals also saw similar shocks. Third seed Navya Rawal edged Aadya Singh 7-5, 6-2, Siya Singh beat Virika Agrawal 6-1, 6-3, Aarika Raj Singh blanked second seed Akanksha Dhiman 6-0, 6-0, and Anya crushed top seed Anvesha Singh 6-1, 6-2. The boys doubles semi-finals featured Rudra Chaurasiya and Shivansh routing Pranay Shukla and Aarav Verma 6-2, 6-2, and Hamdaan and Arnav upsetting top seeds Avighna and Aarish 6-3, 6-1. The girls doubles semis had Anya and Hiya Chauhan toppling top seeds Anvesha and Navya 6-1, 6-2, while Siya and Sanvi Jaiswal demolished second seeds Aarika and Virika 6-2, 6-0....