These are the documents that are required for Re-Issue of Passport and this applies when ECR has to be deleted
- Old Passport in original with self-attested photocopy of its first two and last two pages
- Page of observation (if any), made by Passport Issuing Authority and validity extension page, if any, in respect of short validity passport (Not needed if there are any observations)
- Documentary proof for any one of the Non-ECR (Degree or Matriculation Circulation) – See here
Source : http://www.passportindia.gov.in/AppOnlineProject/docAdvisor/reissuePassport
If you have doubts about ECR and Non – ECR Category read here!