The Iranian team defeated India in straight sets (25-17, 25-19, 25-12) and will face powerhouse Japan on Friday.
The Iranian women started the campaign with a 3-1 win over Hong Kong but suffered a narrow 3-2 defeat to Australia in the preliminary round.
Iran qualified for the next stage as the winner, beating Macau 3-0 and then India 3-0 to qualify for the competition’s quarter-final.
The 2018 Asian Women's U-19 Volleyball Championship is a biennial international volleyball tournament organized by the Asian Volleyball Confederation (AVC) with Volleyball Federation of Vietnam (VFV) for the women's under-19 national teams of Asia.
The tournament is being held in Bac Ninh Province, Vietnam, on June 10-17.