Please look at the link,
http://www.passportindia.gov.in/AppOnlineProject/online/faqServicesAvail...

Deletion of ECR

Q:

My passport was issued at Passport Office, Hyderabad. Presently, I am working at Chandigarh for the last one year. Can I apply for Non-ECR status at Chandigarh and what are the documents required?

A:

You can apply for deletion of ECR at your nearest PSK/Mini PSK within the jurisdiction of Passport Office (PO), Chandigarh. For this purpose, you need to submit Passport Application form along with the following documents: 1.Original and self attested photocopy of your passport.
2.Documentary proof for any one of the Non-ECR (previously ECNR) categories - if you are eligible for Non-ECR.
3.Proof of present address.
To know the list of documents which can be submitted as Address Proof, please click on "Documents Required" link on Home page