Sushil expectedly bagged gold in men's 75kg freestyle category while Amit Kumar won the yellow metal in men's 57kg while Vinesh Phogat finished on top in women's 48kg at the SECC Hall.
Rajeev Tomar, however had to settle for a silver in the men's 125 kg freestyle event after going down to Canada's Korey Jarvis 0-3 in finals.
31-year-old Sushil asserted his class as he won his all four bouts of the day quite comfortably.
In no time, Sushil raced to a 6-0 lead and added two more points, straight away finishing off the contest.
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Amit Kumar defeated Ebikweminomo Welson of Nigeria 6-2 in his final bout.
20-year-old Indian started off well and completely dominated the first round to post a comfortable 4-0 win. The Nigerian, however, fought back and the two wrestlers gave each other a tough time in the next round and they could bag just two points each.
In what turned out to be a close battle between Vinesh and England's Yana Rattigan in the finals of the women's 48kg event, the Indian won 11-8.
Vinesh was down 2-4 in the first round and was facing a tough challenge from her English opponent. But she managed to earn two points to tie it at 4-4 before she could put her rival down again to bag another two just in time to wrap up the opening round 6-4.
Tomar failed to do much in his gold-medal bout, as he failed to earn even a single point. His Canadian rival, meanwhile, could snatch a few technical points in his favour to eke out a narrow 3-0 win and bag the gold.