I am not a person who peeps into sites for timepass and this information is not a humbug.  Actually a candidate should hold diploma certificate for offshore operation and maintenance, but the fact is these companies do not check the candidates while hiring them, if you still have doubt you can check it yourself and then come to a conclusion.  Again my point is not to blame the companies, but I hope this would serve as an eye-washer and that is the reason I shared this on this site and not for publicity.