Filing a RERA complaint against a builder for a Patna project is an online process that has become more streamlined and more effective as Bihar RERA has developed its enforcement capacity. Let me walk you through each step with Patna-specific accuracy so you know exactly what to prepare.

First, verify that your project is registered with Bihar RERA on rera.bihar.gov.in. Every real estate project in Bihar with a land area over 500 square metres or more than 8 units must be RERA-registered before the builder can advertise or sell. If you find your project on the portal, you can check the registered possession date, the approved plans, and the builder's quarterly progress reports — and any departure from these commitments is a potential violation. Bihar RERA has been particularly active on Patna projects along Bailey Road and Boring Road, and has issued several Section 18 orders on delay complaints for projects in these areas.

As of August 2025, Bihar RERA has removed the requirement for compulsory conciliation before a complaint reaches the RERA bench — you can now proceed directly to a hearing. There are two complaint forms: Form C (complaint to the Authority under Section 31 for violations of the Act such as delayed possession, plan deviation, or failure to maintain an escrow account) and a separate application to the Adjudicating Officer for monetary compensation under Sections 12, 14, 18, and 19 for refund with interest or damages. The filing fee is ₹1,000 per complaint. Register on the Bihar RERA portal, complete KYC with Aadhaar and PAN, pay the filing fee through the portal, upload your complaint with the allotment letter, sale agreement, all payment receipts, the possession commitment letter, and all written communications with the builder. The Authority issues notice to the builder and schedules hearings at the Bihar RERA office at 6th Floor, Bihar State Building Construction Corporation Campus, Hospital Road, Shastri Nagar, Patna 800023, or via video conference.

Before filing, send a formal written notice to the builder demanding possession by a specific date and warning of RERA action — this notice is not legally required before filing but strengthens your complaint and often prompts the builder to engage. The RERA lawyers at the Patna panel of Aapka Legal Advice can draft the complaint, identify the exact RERA provisions violated, and represent you at the hearings in Patna.