1) you should never suppress any material information
2) in case you have willfully suppressed material facts you can be dismissed from service
3) for carrying out further studies and obtaining diploma in computer prior permission should have been obtained from govt
4) Ordinarily there can be no objection to the pursuit of knowledge by Government servants in their leisure hours. But this must be subject to the condition that such pursuit does in no way detract from their efficiency. Wherever found necessary, the administrative authorities may require that Government servants under their control should take prior permission before joining educational institutions or courses of studies for University Degrees as the joining of educational institutions involves advance commitment about attendance at specific hours and absence from duty during periods of examinations. Ordinarily, permission is to be granted but with a view to summarily dealing with cases where it is noticed that the Government servant has been neglecting his duties for the sake of his studies, a condition may be attached saying that the permission may be withdrawn at any moment without assigning any reason. This will, of course, be without prejudice to any other departmental action being taken where mere withdrawal of the permission is not considered adequate
4) state govt can take disciplinary action against you