How to Register your Banking Complaints Offline (by post) with RBI's Banking Ombudsman?

Step 1 – For all the basic requirements, read this article and prepare yourself.
Step 2 – Download Ombudsman Complaint Form – Annexure ‘A’ and fill-in relevant details.
Step 3 – Attach all the supporting documents.
Step 4 – Post all the documents to your nearest Banking Ombudsman.