The plane crashed near the town of Menzelinsk, about 960 kilometers east of Moscow.
Amit Panghal (52kg), who is also an Asian Games gold-medallist, thrashed Chinese Taipei's Tu Po-Wei 5-0 to move into the pre-quarterfinals at the World Boxing Championships on Saturday.
Manish Kaushik (63kg) defeated Kyrgyzstan's Uulu Argen Kadyrbek 5-0 in the only bout of the day for India at the World Boxing Championships.
Amit Panghal (52kg), who is also the reigning Asian champion, defeated Philippines' Carlo Paalam 4-1 to be assured of at least a bronze at the World Boxing Championships.
Brijesh Yadav (81kg) didn't just defeat Poland's Maleusz Goinski 5-0 but also left him with a wound on his head in the first and only bout of the day for India at the World Boxing Championships.
Duryodhan Negi lost to Jordan's Zeyad Eashash in the second round, while Satish Kumar went down 0-5 to Richard Torrez of the USA in his opening-round bout at the World Men's Boxing Championships.