Vijender, who became the country’s first ever Olympic medal winner in boxing by grabbing the bronze in the Beijing Games four years back, seemed confident as he let in some lethal punches to pierce the defence of his rival.
The Indian led in each of the rounds, though the Kazakh fighter also landed a few good blows at the Excel arena.
Egged on by the vociferous crowd of expatriate Indians, Vijender opened up a 5-4 lead in the opening round, despite missing a few good scoring chances.
The Indian kept his composure in the next round, notwithstanding Suzhanov’s bid to overturn the script and widened the gulf to 9-7. Of special mention was a lightning left hook followed by a right uppercut unleashed by the Indians, both of which proved productive.
Down by two points, Suzhanov tried to go on the offensive in the third round, but Vijender was more than equal to the task as he took a further 5-3 lead to consolidate his position and end the bout on a triumphant note.
Vijender in the round of 16 on Thursday faces American Terrell Gausha, who overpowered Andranik Hukobyan of Armenia in the opening round with referee stopping the contest.