Document Checklist for PIO to OCI Conversion in Singapore?

Here are some of the documents that you will need to submit for the PIo to OCI conversion application. It includes: 

• Your address proof
• Current passport
• Indian passports of parents, grandparents, and great-grandparents. 
• Spouse passport
• Marriage certificate, if applicable. 
• Proof of Indian origin
• Parental authorization form for a minor. 
• Renunciation certificate. 
• Naturalization certificate. 
• legal status of parents in case of a minor.
• Domicile certificate of parents, grandparents, and great-grandparents
• A copy of the PIO card

For the PIO to OCI conversion, here is the list of the proof of employment: 

• If the OCI applicant is employed, then he or she needs to attach the job profile or a letter from the employer. 
• If the OCI applicant is self-employed, then he or she needs to submit documents of doing business for self-employment. 
• If the applicant is retired, then he or she needs to provide proof of retirement and information about the last employer. 
• If the OCI applicant is not self-employed or does not have a job, then he or she needs to give a written statement. 
• If the OCI applicant is a student, then he or she needs to provide some documents, like an admission letter or a fee receipt. 

For the PIO to OCI card conversion, I have also filled an online application form for the OCI card instead of a PIO card, and entered all the information correctly, and uploaded all the documents, like photos, OCI card application, valid passport, a copy of the PIO card, and other documents, then paid the fees online and booked an appointment for the verification of documents. Then applied to the Indian mission or post and waited for the processing of my OCI card.