I guess your for a Junior engineer, Preliminary interview by a Jr. Engineer for shortlisting the candidates, You have been interviewed by shortlisting CV from Naukri not applied for the post. Also Senior engineers are mostly will be in client side in Qatar, since they need the work done by chennai or Gurgaon office, they will interview you from Qatar through skype. Many people from good background of companies will be less questioned. Please recruited for talent not for a questions... Thanks...