Youngsters of Andhra Pradesh reigned supreme by winning all three titles in the All India Tennis Association (AITA) Championship Series Tournament for under-16 boys and girls at Balasore today. Venkatesh Prasad (AP) emerged boys` singles champion, defeating Niranjan Ram of Tamil Nadu 6-3, 3-6, 6-3. The girls` singles crown went to J Doondi Priya (AP) who trounced Adrita Banerjee (West Bengal) 6-1, 6-0. Pradeep Deswal and Hriday Nivedita completed a hat-trick of titles for Andhra Pradesh by beating Niranjan Ram and Raj Vishnu (Tamil Nadu) in the boys` doubles final 7-6 (7-5), 6-3.