Ankit Narwal (57kg) and Akshay Siwach (60kg) won their respective bouts to make the last-four stage.
While Ankit defeated Kazakhstan's Dimitriy Barmin in split 3-2 verdict, Akshay got the better Chinese Taipei's Lin Yu.
However, three others Indians fell by the wayside after losing their quarterfinal bouts.
Selay Soy (46kg) went down to local favourite Dela Kenneth in a unanimous verdict.
Aman Ghanghas (54kg) was beaten by Japan's Yura Kenshin 2-3, while Aakash Sai (66kg) lost to Kyrgyzstan's Dastan Onolbekov.