The RMO is meant primarily for students of Class IX--XII. As special cases, exceptionally talented students from Class VIII may be allowed to appear at the discretion of the Regional Coordinator.

Please note that the RMO is the first step in selecting the Indian team for the IMO! This requires special talent in problem-solving and interest in Mathematics. It is not meant for the average or even good student who does not have this.

A student may choose any centre convenient to him/her.
At present, each region selects 30-35 students for the INMO. At most 6 students are selected from Class XII.