If your bank is delaying issuing a No Objection Certificate (NOC) for your fully paid car loan, you have several options. You can file a complaint with the Banking Ombudsman or use the Right to Information (RTI) Act to formally request the reasons for the delay. Alternatively, consider sending the bank a legal notice and then filing a complaint with the consumer commission, which can order the bank to issue the certificate. Seeking advice from a local lawyer is also recommended.