The Astronomy Olympiad program follows the following 5 stages:
|Stage I: NSEA
|Last/second Last Sunday of November.
|Stage II: INAO
|Last week of January
|Stage III: OCSC
|April – June
|Stage IV: PDT
|July - November
|Stage V: IOAA
|July – December
NSEA is the first stage of selection of students in the astronomy Olympiad Programme which is organized by the Indian Association of Physics Teachers (IAPT). Every student aspiring to go through successive stages of the programme must enroll for NSEA. NSEA will be held at a large number of centres in the country.
The aim of the first stage examination is to have a wide reach, to progressively increase this reach and to attain nationwide representation for Stage II without overly compromising on merit. Hence the selection for the Stage II examinations i.e. Indian National Olympiad Examinations (INOs) is based on the following scheme.
OCSC in astronomy will be organized by HBCSE sometime in April to May 2015 for 2-3 weeks. The precise dates will be announced prior to or along with the announcement of the selection list for the OCSC.