Top seed Vikas Krishan and Gaurav Bidhuri advanced to the quarterfinals, in their respective categories giving India a good start at the Asian Boxing Championships in Tashkent today.Vikas took barely two minutes to sail past Thailand's Pathomsak Kuttiya after his opponent sustained a cut above hisleft eye just over a minute into the opening round. The bout in the 75kg category was halted twice before the referee decided to stop the contest in favour of Vikas. He will face Indonesia's Betaubun Brama Hendra in the last-eight stage.Gaurav in the 56kg category, defeated a Thai in his first contest, going past Yuttapong Tongdee. Gaurav has a tough contest coming up as he will be squaring off against second seed Jiawei Hang of China.However, it was curtains for Asian youth silver-winner Ashish Kumar, who was defeated by Uzbekistan's IkboljonKholdarov.All the three were competing in the pre-quarterfinal stage after getting first-round byes.The tournament, featuring 179 boxers from 28 countries, is a qualifier for the August-September World Championships in Hamburg, Germany.