The Indian Chemistry Olympiad programme was initiated in the year 1999. Over time the INChO programme has evolved considerably and today, it is a significant educational activity in the country. In the third year of its participation, that is, in the year 2001, India hosted the 33rd International Chemistry Olympiad at Mumbai that had a participation of 60 countries. The 33rd IChO was the first International Science Olympiad hosted by India that required organisation of large scale experimental contest of international standards. The successful hosting of this mega event strengthened the National Science Olympiad programme in the country.


One of the most significant outcomes of the 33rd IChO has been the formation of Association of Chemistry Teachers (ACT). The need and idea for the chemistry teachers’ association were proposed by HBCSE in the year 2000. The formation of ACT was catalysed by the 33rd IChO as this event mobilised some of the ablest chemistry faculty members and teachers in the country. Today, ACT is a recognized body that supports various activities related to chemistry education, particularly at the tertiary level. ACT also conducts annual conventions for teachers and has its office located in HBCSE premises.

Indian National Chemistry Olympiad (2002-2007)

33rd IChO Preparatory

33rd IChO Theory Task

33rd IChO Practical Task