India's IOAA team takes four golds and a silver in Hanoi, tying Vietnam for third

India's five-student team left the 19th International Olympiad on Astronomy and Astrophysics with four gold medals and one silver. The contest ran in Hanoi from 25 September to 5 October. With four golds, India finished joint third with the host, Vietnam. Iran and South Korea led the table with five golds each.

The gold medallists were Pranjal Dixit of Hyderabad, Sumant Gupta of Delhi, Akshat Srivastava of Gurugram and Arnav Sehrawat of Faridabad. Harshil Amitkumar Patel of Vadodara took the silver. The 2026 edition had 307 students from 64 countries, the largest IOAA so far on both counts. Organisers awarded 51 gold medals, 48 silver and 60 bronze.

What the placement actually means

Joint third on gold medals is a team result, not a ranking of every paper. IOAA medals are awarded against score cut-offs, so a country can collect four golds without its fifth student missing the gold line by much, or by a wide gap. Patel's silver is the only public marker of that gap on the Indian side. The organisers have not published individual scores in the reports available on Tuesday morning.

Iran and South Korea, with five golds each, sent teams in which every student cleared the gold cut. India and Vietnam did not. That is the clean comparison. It is also the comparison that matters for the next selection camp, because the Indian pipeline now has four students who have already cleared an international gold line in astronomy and astrophysics, and one who cleared silver.

The four gold cities are not a single coaching centre. Hyderabad, Delhi, Gurugram, Faridabad and Vadodara is a spread across three states and the capital region. Selection for IOAA in India runs through the usual science-olympiad ladder: a national exam, a camp, and a final five. The public result does not say which camp produced which student. It does say the 2026 five were not drawn from one school.

A first across the senior Olympiads

Indian reports on the result also noted a wider claim: this is the first year since India began sending students to international Olympiads in 1989 in which every Indian student across the five senior-level Olympiads won either gold or silver. That claim covers more than IOAA. It takes in the mathematics, physics, chemistry and biology contests as well, on the count given in those reports: 24 students, 16 gold and eight silver.

The 1989 date is the start of India's formal participation, not the start of each subject contest. A clean gold-or-silver sweep across five teams in one year is rare because a single bronze, or a student below the medal line, breaks it. The 2026 astronomy team did not break it. Patel's silver kept the Indian IOAA line inside the claim.

IOAA is not the International Olympiad in Informatics, and it is not the physics olympiad. The papers mix observational astronomy, data analysis, and theory. A gold in Hanoi does not translate into a rank list that universities publish. It does travel, in practice, into undergraduate applications in physics and astronomy, which is why the names and cities are the useful part of the result for anyone outside the contest circuit.

Vietnam hosting, and tying India on four golds, is the other local fact. A host often fields a strong team because the selection camp sits on home ground and the observational paper can use local sky conditions. Vietnam matched the Indian gold count in its own city. Iran and South Korea still led. The next IOAA will show whether 2026 was a peak year for those two or the new normal at the top of the table.

For the five Indian students the immediate record is simple. Four golds, one silver, joint third with the host, behind two countries that swept their own teams in gold. The contest closed on 5 October. Scores, if they are released, will say how close Patel was to the gold cut, and how close the four golds were to each other. Until then the medal count is the result.