Question: how to ecnr stamp on passport?
Answer: To apply for an ECNR stamp in the passport, the applicant is required to fill a Miscellaneous Application form (EAP-2) . ... 
An all-inclusive fee of Rs. ... 
Valid passport in original.
Attested two photocopies of the proof that the applicant is entitled for ECNR, as per the list mentioned above. ... 
Proof of address.