Asian quarter-finalist Sachin (49kg) scored an emphatic victory over Mexico's Gustavo Antonio Alvarez to enter second round of the AIBA Youth World Boxing Championships in St. Petersburg, Russia on Saturday.
Puri (81kg), also an Asian silver-medallist, had beaten Azerbaijan's Elkhan Aliyev in his opening contest.
Later on Saturday, reigning national champion Anwar (52kg) will face England's Akash Tuqir, while Mohammed Etash Khan (56kg) will be up against Cuban Alexei Romero Rodriguez.
The event, which gave India the likes of World Championships medallists Shiva Thapa and Vikas Krishan in the past, will be held till November 24. While Vikas had won a gold, Shiva had clinched a silver in the 2010 edition of the tournament.
However, in the 2014 Championships, India had managed just a bronze and the team would be looking to improve on that performance.
Image: A boxer tapes his hand before training (Image used for representational purposes)
Photograph: Mark Kolbe/Getty Images