BWSSB Water: Transferring the Connection and Checking the Source

A family that moved into a bright new flat off Sarjapur Road discovered their water story only after possession. The building looked well finished, but the taps ran on borewells and a steady procession of private tankers, not on a Cauvery connection, and the monthly water bill was a line item they had never priced. Their neighbour in an older, core city block paid a fraction as much for a piped Cauvery supply. The flat was fine. The water source, which nobody had asked about, quietly reshaped the cost of living there.

The short answer. After you buy a flat in Bengaluru, transfer the BWSSB water connection into your name using your sale deed, the latest paid bill, your khata and identity proof, and clear any old water dues first. But do one thing before you even buy: check how the property is actually supplied, because a Cauvery connection and a borewell and tanker supply are very different propositions. The trade-off is real: a tanker dependent home can carry a meaningful ongoing water cost and a resale disadvantage, so the source is worth checking as carefully as the paperwork of the transfer itself.

Why transfer the BWSSB water connection into your name?

Transferring the connection puts the water account and the bill in your name rather than the seller's or the builder's. Until it is done, you are paying on someone else's account, you cannot easily raise complaints or corrections, and the deposit and billing history stay tied to a previous owner. It is a routine step after possession, but leaving it undone is a loose end that catches up with you when you least want it to.

It sits alongside the other transfers you make after buying, and follows the same logic as moving the electricity account, which our guide on the BESCOM electricity name transfer sets out. Doing both promptly keeps every utility record pointing at you, the actual owner, rather than at whoever held the flat before.

The connection also carries a sewerage component and a deposit that the board holds, and both are recorded against whoever the account belongs to. When the account is yours, the billing, the deposit and any future service requests sit with you rather than with a seller who has long since moved on. That alignment is the whole point of the transfer, small as the step seems.

What documents and details do you need?

You need your registered sale deed, the latest paid water bill, your khata, the property tax paid receipt and your identity proof, and you will be asked for identifying numbers such as the connection's RR number, the khata number and the property identification number. Gathering these before you apply, with the names consistent across them, is what keeps the transfer from stalling on a missing paper.

As with any utility change, mismatched names across the documents can hold things up, so reconcile any difference in spelling between the bill, the khata and the deed before you file. Having the identifiers ready from the bill also means you are not hunting for the RR number midway through the application.

It helps to collect these while you are gathering the papers for the khata and the electricity transfer, since the same core set, the sale deed, the tax receipt and your identity proof, serves all of them. Doing the utility transfers together, once the khata is updated, saves you from repeating the same document hunt three times over.

Do you clear old water dues first, and what is the order?

Yes, clear the dues first. Any outstanding water charges on the connection should be settled before the transfer, because BWSSB can hold up the change while a balance is pending, and you do not want to inherit a bill you never ran up. Confirming a nil balance and taking the latest paid bill therefore belong in your checks before you buy, not after you have the keys.

The order of steps mirrors the rest of your post purchase paperwork: register the sale deed, get the khata mutated into your name, and then move the utilities. A clean, updated khata smooths the whole chain, which is why our guide on the e-Khata and khata transfer is the natural first step before you approach BWSSB.

How do you apply for the transfer?

You apply online through the BWSSB services portal, choosing the transfer of water connection option, entering your RR, khata and property identification numbers, and uploading the sale deed, the latest paid bill, the tax receipt and your identity proof. The official portal at bwssb.karnataka.gov.in is the reference point for the current process. An engineer from the board typically visits to verify the connection, after which a demand note is raised for any fees.

Once you pay the demand, the account is updated into your name, usually within a couple of weeks of your application being acknowledged. Keep the acknowledgement and the confirmation, because that paper trail proves the connection is yours if a question ever arises. As with the electricity transfer, this is a low cost administrative step, so there is no need to pay a middleman a large fee to handle it.

Does the property actually have a Cauvery connection?

This is the check most buyers skip, and it can matter more than the transfer itself. Core parts of the city generally enjoy a stable piped Cauvery supply from BWSSB, but many peripheral areas, including a large belt of villages absorbed into the city, still rely heavily on borewells and private tankers. A flat on tanker water carries a recurring cost and a reliability risk that a Cauvery connected home does not, and groundwater in several peripheral pockets is under real stress.

So find out, at project level rather than from the brochure, exactly how the specific building is supplied: a BWSSB Cauvery connection, a borewell, tankers, or some combination. The board has been extending Cauvery supply to newer areas, but until a project is actually connected, its water comes from wherever it can, and that is a cost and a risk you are taking on. For a peripheral project such as Myhna Vistara in Gunjur, the water question deserves as much attention as the price.

The cost gap is not trivial over the years you will live there. A piped Cauvery supply is billed at civic rates, while tanker water is bought at market prices that rise in the dry months, and a large apartment complex can spend heavily on tankers through a bad summer. A home that depends on tankers also tends to be harder to resell, because the next buyer will weigh the very same recurring cost that you are weighing now.

How do you protect yourself on water before buying?

Treat water as a first order question, not an afterthought. Ask the seller or the society how the property is supplied, whether there is a BWSSB Cauvery connection or a dependence on borewells and tankers, and what the realistic monthly water cost has been. A borewell dependent home is not necessarily a bad buy, but it should be priced with that ongoing cost and the resale disadvantage in mind, rather than assumed to be the same as a Cauvery connected one.

Where a project runs on borewells, ask about the depth and yield of the wells and whether the society has a plan to secure a Cauvery connection, because groundwater is not a guaranteed source and several peripheral pockets have seen their own wells run dry during the harder recent summers.

Then handle the transfer cleanly after you buy, so the account and the dues are placed squarely in your name. Work through the checklist below to cover both the source and the transfer.

1. Ask how the property is supplied, Cauvery connection, borewell or tankers.
2. Verify the water source at project level, not from the brochure.
3. Confirm there are no outstanding water dues on the connection.
4. Collect the latest paid bill and note the RR, khata and PID numbers.
5. Get the khata mutated into your name before the utility transfer.
6. Apply to BWSSB online with the sale deed and supporting documents.
7. Pay the demand note and save the confirmation once the name is changed.

Frequently asked questions

Do I need to transfer the BWSSB water connection after buying?

Yes. The water account does not move to your name automatically, so you apply to BWSSB to transfer the connection using your sale deed, the latest paid water bill, your khata and identity proof. Until you do, the bill stays in the seller's or builder's name, which leaves the account outside your control and can complicate future dealings.

How do I apply for a BWSSB name transfer?

You apply online through the BWSSB services portal, choosing the transfer of water connection option, entering your RR, khata and PID numbers, and uploading the sale deed, latest paid bill, tax receipt and identity proof. An engineer verifies the connection, a demand note is raised, and once you pay, the account is updated into your name.

Should I check whether a flat has a Cauvery water connection before buying?

Yes, and it is easy to overlook. Core city areas usually have a stable Cauvery supply, while many peripheral projects still depend on borewells and tankers. Ask how the specific project is supplied, at project level rather than from the brochure, because a home reliant on tankers carries a real ongoing cost and a resale disadvantage.

Do I have to clear old water dues before the transfer?

In practice, yes. Any outstanding water charges on the connection should be cleared before BWSSB will complete the transfer, and unpaid dues can hold up the process. So confirm a nil balance and take the latest paid bill as part of your checks before you buy, rather than inheriting a bill you did not run up.

Last updated 2026-09-01. PropNewz Team.