Also advancing to the quarters was former Commonwealth Games gold medallist Manoj Kumar (69kg) and former Asian Games silver-medallist Dinesh Kumar (91kg) today.
Local favourite Shiva, competing in his maiden tournament in the lightweight (60kg) category, was up against Services Sports Control Board's Manish in perhaps the most exciting and anticipated bout of the day.
The otherwise sparsely attended tournament had a fair share of spectators today owing to the 23-year-old Shiva, who fought through the tough challenge posed by Manish.
The two boxers did not disappoint and produced a thoroughly engaging contest in which fortunes ebbed and flowed. While the opening round quite clearly went to the former Asian champion, Manish made a comeback in the second round.
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However, Shiva, a two-time Olympian already, raised his game when it mattered in the final three minutes to clinch the issue 4-1.
At the end of the gruelling contest, both the boxers embraced each other warmly perhaps in acknowledgment of the effort they put in.
"I am definitely focussing on the gold, let's see who my next opponent is in the quarters," he added.
In contrast, Devendro (52kg) completely dominated his bout against Uttarakhand's Arvind. Such was the ferocity of his trademark tempo boxing that Arvind twice faced a standing eight count before the judges ruled 5-0 in Devendro's favour.
However, Manoj was given a stiff fight by Meghalaya's Tilok Budha but still managed to score 5-0 victory.
(REOPENS SPD 9)
A slight controversy broke out in the evening session during a fiercely-contested bout between Railways Sports Promotion Board's J Bhaskar and SSCB's Kavinder Singh in the flyweight category.
In a showdown which Kavinder seemingly dominated, he was first declared loser after an accidental cut above his eye as per old rules which mandate the referee to stop the contest.
The SSCB pointed this out in an aggressive protest, prompting a counting of the score, which eventually found Kavinder to be the winner. However, Kavinder would not be able to compete in the quarterfinal tomorrow owing to the deep gash on his forehead.
Among other notable results, two-time national champion Jasveer Singh (91kg) pummelled Manipur's Rohit Shinde to win the bout in under three rounds. Referee stopped the bout in the final three minutes after Shinde ended up with a cut on his forehead.