Second seed Sahil Deshmukh crashed out of the boys' under-18 singles in the CCI-ITF junior boys and girls' tennis championship, losing his opening round match to Indian compatriot Vidit Vaghela in straight sets, in Mumbai, on Monday.
Deshmukh, ranked 290 in the world among juniors, was no match for Vaghela as he lost 2-6, 5-7 at the Cricket Club of India's courts.
Meanwhile, top seed Goran Markovic of Serbia faced no problem while advancing to the second round.
The Serb, ranked 222, cruised to a 6-1, 6-0 victory over India's Rian Pandole.
Another seed to tumble out in the boys' competition was fourth seed Ayap Sagadat of Kazakhstan, who went down to India's Garvit Batra.
Batra, ranked 951, rallied to prevail 3-6, 7-5, 6-1 over his 326-ranked opponent.
Boys' singles (1st round): Garry Tokas (Ind) bt Nishanth Rebello (Ind) 6-3, 2-6, 7-6(6); Sai Nikhil Manepalli (Ind) bt Watcharaphong Lam La-Or (Tha) 6-2, 6-4; 6-Alexey Nesterov (Kaz) bt Lakshaman Balaji (Ind) 6-1, 6-2; Garvit Batra (Ind) bt 4-Ayap Sagadat (Kaz) 3-6, 7-5, 6-1; Rajanvir Singh Dharni (Ind) bt Karan Lanchandani (Ind) 6-0, 6-0; 7-Dimitry Popko (Kaz) bt Indra Patwardhan (Ind) 6-1, 6-2; Abiiyev Kuatbek (Kaz) bt 8-Anvit Bendre (Ind) 6-4, 3-1 (retd.); Vijay Jude Raymond (Ind) bt Danil Mischennko (Kaz) 2-0 (retd.); 3-Chih-Chun Tang (Tpe) bt Hardip Singh Sandhu (Ind) 6-1, 6-2; Sachin Kumar (Ind) bt Chanitom Silakul (Ind) 6-2, 1-6, 6-1; Vidit Vaghela (Ind) bt 2-Sahil Deshmukh (Ind) 6-2, 7-5; Goran Markovic (Srb) bt Rian Pandole (Ind) 6-1, 6-0.