Fifteen-year-old Vaibhav Sooryavanshi claimed 2/11 in three overs to help East Zone secure an innings and 210-run victory over North East Zone.
Sooryavanshi, who serves as vice-captain, dismissed Ishan Lyngdoh and Imliwati Lemtur during his spell, helping reduce the opposition from 75/5 to 79/7.
The East Zone team will face Centre Zone in the Duleep Trophy semifinal at the Centre of Excellence in Bengaluru this Sunday.