The International Physics Olympiad (IPhO) is an annual event, which is held in the month of June – July every year. The country of the venue of IPhO varies from year to year. This activity has been conducted regularly for the past 37 years. However, India began to participate in the IPhO only in 1998.
The International Chemistry Olympiad (IChO) has been conducted since 1968, and is a competition for students at the secondary and higher secondary school levels. The IChO boosts the level of chemistry education in the participating countries. It helps develop friendly relations between the young people from different countries.
The Mathematical Olympiad Programme in India, which leads to participation of Indian students in the International Mathematical Olympiad (IMO) is organized by the Homi Bhabha Centre for Science Education (HBCSE) on behalf of the National Board for Higher Mathematics (NBHM) of the Department of Atomic Energy (DAE), Government of India. This programme is one of the major initiatives undertaken by the NBHM.
The International Biology Olympiad (IBO) started in 1990. It is an annual event open to pre-university students. It serves as a benchmark for biology education at the higher secondary school level. India started participating in IBO from the year 2000. India hosted the 19th IBO in July 2008 in Mumbai.
The National Astronomy Olympiad Program is designed to encourage students with good foundations in Physics and Mathematics and an interest in Astronomy to pursue further studies in this field. It involves a five stage process leading to participation of Indian team in International Olympiad in Astronomy and Astrophysics (IOAA).