How to File a Complaint Against a Builder with TNRERA: Form M vs Form N

In short: if a RERA-registered builder delays your flat, changes what was promised or won't refund you, you can complain to the Tamil Nadu Real Estate Regulatory Authority (TNRERA) at rera.tn.gov.in. Form M goes to the Authority (for violations of the RERA Act); Form N goes to the Adjudicating Officer (for compensation). Claims for compensation have a three-year time limit from the date the builder broke the agreement.

Form M or Form N: which one do you need?

TNRERA has two separate complaint routes, each with its own form and fee:

Sections 12, 14, 18 and 19 cover false information in advertisements or prospectus, changes to sanctioned plans and structural defects, delay or failure to hand over possession (including refund with interest), and the buyer's rights. If you want both a direction to the builder and compensation, many buyers file both forms. Fees are paid online; they come from a 2018 TNRERA circular, so check the current amount on the portal before you pay.

How to file, step by step

• Confirm the project's RERA number on rera.tn.gov.in. See how to check TNRERA registration.
• Create a complainant login on the portal and choose online filing of complaints.
• Fill in Form M or Form N: your details, the builder's details, the project, what went wrong and what you are asking for.
• Upload your documents (see the list below) and pay the fee online.
• Send hard copies. Copies of the complaint must reach the TNRERA office within seven days of filing online, as PropNewz reports.
• Attend the hearings. The builder is given notice and a chance to reply before an order is passed.

Offline complaints have also been accepted since 1 November 2021. For help, TNRERA lists (044) 2888 7912 and (044) 2888 7914 for Form M, (044) 2888 7919 for Form N, and contact.tnrera@tn.gov.in.

Documents to keep ready

• Agreement for sale or construction agreement, and the sale deed if registered
• Allotment or booking letter, and the payment receipts or bank statements
• Brochure or advertisement showing what was promised
• Letters, emails and WhatsApp messages with the builder, including any revised possession dates
• Photos of defects or missing amenities, if that's the complaint

What compensation can you get?

For delayed possession, Rule 18 of the Tamil Nadu RERA rules pegs the interest a builder must pay to SBI's highest marginal cost of lending rate (MCLR) plus 2%, as noted in a 2023 order against Ozone Projects. Adjudicating Officers have also awarded amounts for mental agony and litigation costs: in one case reported by LiveLaw in October 2024, TNRERA directed Tata Value Homes to pay ₹3 lakh to a buyer for delay and mental agony.

Each case is decided on its own facts, so these are examples, not a guide to what any one buyer will get.

Watch the three-year time limit

On 14 October 2026, the Tamil Nadu Real Estate Appellate Tribunal held that compensation claims under RERA must be filed within three years under the Limitation Act. The clock starts on the date the builder broke the agreement, for example the day after the promised possession date, and taking possession late does not restart it (LiveLaw).

In that case, the agreement promised possession by 4 October 2016, so the time limit ran out on 5 October 2019. If your builder has missed a deadline, don't wait for possession before acting.

Before you file

• Write to the builder first, by email or letter, stating the problem and what you want. It creates a record and sometimes settles the issue.
• Check your agreement for the promised possession date and any grace period.
• Consider a lawyer for large claims. You can file yourself, but the builder will usually be represented.
• Avoid the problem upfront by checking RERA status, approvals and the builder's track record. See under-construction vs ready-to-move flats and our ready-to-move flats in Chennai.

Buying in Chennai? Jumbo Realty lists RERA-registered projects with their registration numbers on every page. Call or WhatsApp +91 87545 79898.