The theory part of the INChO examination is held in end-January/beginning of February of every year.
A total of 30 students are chosen from these to attend the Orientation-Cum-Selection-Camp (OCSC), chemistry, held at HBCSE, Mumbai.
[1] However, in some cases, students have been selected for INChO at the end of the eleventh or tenth standard.
The Orientation-Cum-Selection-Camp (OCSC), Chemistry, consists of rigorous training and testing in theory and experiment.
The top four performers here are selected to represent India in the International Chemistry Olympiad.