Property due diligence questionnaire refers to a structured list of documents and checks that a buyer or their lawyer uses to verify a property's legal title, encumbrances, approvals, and ownership history before purchase. According to the Registration Act, 1908, and the Karnataka Stamp Act, 1957, a buyer must confirm that the seller has clear, marketable title and that all statutory dues are paid. In Bangalore, skipping this step can lead to disputes, loan rejections, or even property loss.
What is a property due diligence questionnaire and why should you use one?
A property due diligence questionnaire is your cheat sheet for not missing anything important. In 20 years, I've seen clients lose their token advance because they didn't check an old mortgage. The questionnaire makes sure you ask for the right papers before you pay a rupee. It covers title deeds, encumbrance certificates (EC), khata, tax receipts, building approvals, and more. Think of it as a pre-purchase health check for your property.
What documents do you need to ask for in your questionnaire?
Here's the core list I ask every client to get from the seller. Without these, don't proceed further:
- Mother deed or title chain for the last 30 years (or at least from the last absolute sale)
- Sale deed in your name if resale, or agreement of sale if under construction
- Encumbrance certificate (EC) for the last 13 to 30 years (Karnataka sub-registrar practice)
- Khata certificate and extract (A or B khata – this matters a lot)
- Tax paid receipts for the last 5 years
- Approved building plan from the local authority (BBMP, BDA, or panchayat)
- Occupancy certificate (OC) for completed buildings
- RERA registration number if it's a new project (RERA Act, 2016)
- No-objection certificates (NOCs) from relevant departments if needed (fire, pollution, etc.)
- Property tax receipt
- Mutation register extract (RTC for agricultural land)
I've seen many deals stall because the seller couldn't show a clean EC for just 13 years. Always ask for the full period.
How do you verify the title of the seller in Bangalore?
Title verification is the heart of due diligence. You need to see the chain of ownership from the original grant or last absolute sale. In Bangalore, we usually trace back 30 years. Ask for copies of all sale deeds, gift deeds, or inheritance documents. Check that each transfer was properly registered under the Registration Act, 1908. I once found a deed that was signed but never registered – the seller didn't own the property legally. Always get the EC to confirm no pending loans or mortgages.
What is an encumbrance certificate and how do you read it?
An encumbrance certificate (EC) is a record from the sub-registrar's office that lists all registered transactions on a property. It shows sales, mortgages, releases, and even litigation if a court order is registered. In Karnataka, you can get ECs online through Kaveri portal or at the sub-registrar office. Look for any entry that says 'mortgage' or 'suit' – that's a red flag. For example, if you see a mortgage from 2010 with no release entry, the property is still under a bank loan. The seller must get a release deed (also called a no-dues certificate and registered release) before sale.
What is the difference between A Khata and B Khata and why does it matter?
Khata is the property account with the local municipal body (BBMP in Bangalore). A Khata means the building is legal, approved, and taxed properly. B Khata means the property has some violation – like unauthorized floors or deviation from approved plan. Banks usually don't give loans on B Khata properties. Here's a quick comparison:
| Feature | A Khata | B Khata |
|---|---|---|
| Approved plan | Yes | No or partial |
| Loan eligibility | Easy | Very hard |
| Property tax | Regular | May be higher penalty |
| Resale value | High | Low |
| Risk of demolition | Low | High |
Takeaway: Always insist on A Khata unless you're paying cash and understand the risks. I've had clients who bought B Khata properties and later couldn't get a home loan even at 12% interest.
How long does a full property due diligence check take in Bangalore?
If you have all documents ready, a professional title check can be done in 2 to 3 days. At Legal Brigade, we usually return a title opinion in 48 to 72 hours because we've seen thousands of files. For urgent cases, we can do same-day checks if the seller is cooperative. But if documents are missing, it can take a week to get ECs from sub-registrar offices or verify approvals with BBMP. Don't start the process a day before your token advance deadline – give yourself at least two weeks.
What happens if you skip due diligence or do it yourself?
I've seen disasters. A client in Electronic City bought a flat without checking the EC. Later, the bank refused a loan because the builder had mortgaged the land to another bank and never released it. The buyer had to pay the builder's loan to clear the title – nearly 20 lakh extra. Another case: a family bought a plot in Kanakapura Road, but the seller was not the sole owner. The other co-owner filed a suit, and the buyer spent 5 years in court. A simple due diligence would have caught both issues.
Here's a comparison of doing it yourself vs. hiring a lawyer:
| Factor | Self-Verification | Lawyer-Led Due Diligence |
|---|---|---|
| Time | 1-2 weeks (if you know what to look for) | 2-3 days |
| Cost | Free (your time) | Flat fee, typically 5,000 to 15,000 rupees for a standard check |
| Risk | High – you might miss hidden mortgages, litigation, or family claims | Low – experienced lawyer spots red flags |
| Documents checked | Often only sale deed and EC | Full chain: mother deed, ECs, khata, tax, approvals, RERA |
| Legal opinion | No | Written title opinion with risk assessment |
Takeaway: Self-verification is risky for anything above a few lakhs. A professional check costs a fraction of the property value and saves you from big losses.
What are the common red flags in a property due diligence questionnaire?
Here are red flags I watch for in every file:
- Missing mother deed or gap in title chain
- EC showing an unreleased mortgage or lien
- B Khata or no khata
- Property tax arrears
- Building plan not approved or deviation from plan
- Occupancy certificate not obtained
- RERA not registered for projects with more than 8 units (RERA Act, 2016)
- Multiple owners or unclear succession (no legal heir certificate)
- Pending litigation – check court records or Indian Kanoon
- Property converted from agricultural to non-agricultural without proper order
If you see any of these, pause. Don't pay any advance until a lawyer clears it.
How much does property due diligence cost in Bangalore in 2026?
Costs vary. If you do it yourself, you'll spend time and maybe money on ECs (about 200 rupees per EC online via Kaveri, plus 500-1000 for certified copies at sub-registrar). A professional lawyer's fee for a full due diligence including title opinion ranges from 5,000 to 20,000 rupees depending on complexity. At Legal Brigade, we charge a transparent flat fee with no hidden costs. For high-value properties above 1 crore, fees may be slightly higher but still a fraction of what large firms charge. The cost is nothing compared to the risk of a defective title.
Frequently Asked Questions
Can I do property verification myself or do I need a lawyer?
You can do basic checks – get the EC, khata, and tax receipts – but a lawyer will spot issues you might miss, like a mortgage that's still active or a missing signature in the title chain. In 20 years, I've seen buyers who thought everything was fine, only to discover a co-owner's claim. A lawyer's opinion gives you legal cover if something goes wrong later. Most banks also insist on a lawyer's title report before approving a home loan.
How long does a property due-diligence check take?
A standard check takes 2 to 3 days if documents are complete. Urgent checks can be done in a day, but that depends on the seller's cooperation and availability of certified records. At Legal Brigade, we prioritize urgent cases for clients with a tight token advance deadline.
How much does property title verification cost in Bangalore?
Professional title verification typically costs between 5,000 and 15,000 rupees for a standard property. For commercial properties or complex title chains, it may go up to 25,000 rupees. This is a one-time fee that covers document review, EC verification, and a written opinion. It's much cheaper than losing your deposit or fighting a court case later.
What is a mother deed and why is it important?
A mother deed is the oldest deed in the title chain of a property. It shows how the original owner acquired the land. In Bangalore, we often trace back 30 years to the mother deed. If the mother deed is missing, the title chain is broken, and you can't be sure the seller has clean ownership. Always ask for it.
What is the difference between a sale deed and a title deed?
A sale deed is the document that transfers ownership from seller to buyer at registration. Title deed is a broader term that includes any document proving ownership – sale deed, gift deed, will, etc. In due diligence, you need all title deeds to check the full chain.
Do I need to check RERA registration for a resale flat?
For under-construction projects, RERA registration is mandatory under the Real Estate (Regulation and Development) Act, 2016. For resale flats in a registered project, the original RERA number should be mentioned. If the builder never registered, the project might be illegal. Check on the Karnataka RERA website before buying.
What is the cost of an encumbrance certificate in Karnataka?
You can get an EC online through the Kaveri portal for about 200 rupees per year. For a certified copy from the sub-registrar office, it's around 500-1000 rupees plus fee per year. Most lawyers include EC search in their fee.
If you've got a token advance riding on a deadline, don't gamble on it. At Legal Brigade we usually turn a full title check around in two to three days at a flat, upfront fee – send us the documents and we'll tell you exactly where you stand. You can book a free property consultation to get started.
Written by Legal Brigade, a Bangalore-based property lawyer with 20+ years of practice in property title verification, due diligence, registration, and civil litigation across Karnataka courts and sub-registrar offices. For a property title check or due-diligence opinion in Bangalore, contact Legal Brigade at legalbrigade.co.in.