You have registered your purchase and you hold the sale deed. It is natural to assume the land is now in your name in the records. Often it is not. Registration records the transaction that transferred the property to you, but the government's revenue record can still name the seller until a further step updates it to show the new holder. That step is called mutation. This guide explains what mutation is, when it must happen, how it is done in Karnataka, and what goes wrong if you skip it.

The short answer

Mutation is the updating of the revenue record after a sale, inheritance or gift, and it is a separate step from registration. A registered sale deed proves the transaction, but it does not by itself update the record, so the land can be registered to you by deed and still not be in your name in the revenue record. Mutation is what puts the new owner on that record, the RTC for rural land and the Khata for urban property. One limit matters from the outset: mutation updates the record, but it does not by itself confer title (KSandK, February 2026). Registration and mutation are two distinct events, and the sections below take them in turn.

What is mutation of property, and why is the registered sale deed not enough?

Mutation of property is the process of updating the government's revenue record after ownership changes, so the record shows you, and not the seller, as the current holder. That record is the RTC for rural land and the Khata for urban property. Mutation applies whenever a holding changes hands, by sale, inheritance, gift or partition.

The registered sale deed you receive at the Sub-Registrar's office records the transaction, but it does not automatically make you the recorded holder. Those are two different documents doing two different jobs. As one legal explainer states it, your title flows from the registered deed or a court order, not from mutation (Prashastha Legal). The buyer holds the deed from the moment of registration, while the record can still name the seller until mutation is carried out. The two events that decide this, registration and mutation, are worth separating clearly.

Registration versus mutation: what is the difference?

Registration is executed at the Sub-Registrar's office under Kaveri, now Kaveri 2.0, and it legally records the transaction. Mutation is carried out by the Revenue Department through the Bhoomi platform for rural land, or by the municipal body through the Khata for urban property, and it updates the revenue record to show the new holder. These are two events, run by two offices, producing two records.

Set side by side, the difference is clear:

  • Registration: the authority is the Sub-Registrar's office (Kaveri, now Kaveri 2.0); its output is the registered sale deed that evidences the transaction.

  • Mutation: the authority is the Revenue Department via the Bhoomi platform for rural land, or the municipal body via the Khata for urban property; its output is the updated RTC or Khata showing you as the new holder.

In Karnataka you may also hear mutation called Khata Badalavane, which means change of account (TalkingLands). The label is different, the step is the same: the record is changed to name the new holder. That the record now names you raises the next question, whether that entry proves you own the land.

Does mutation prove ownership?

Mutation is a revenue and fiscal record used for tax and administration, and it does not by itself prove ownership. It does not confer or prove title either: title flows from the registered sale deed or a court order, not from the mutation entry (KSandK, February 2026). A mutation entry is evidence of who the record-holder is for tax and administrative purposes, recorded in the revenue record; it is not conclusive proof of ownership.

This distinction is set by the Karnataka Land Revenue Act, 1964, the statutory frame for the record (Prashastha Legal). For a buyer the practical point is plain: a clean mutation entry is necessary but not enough, and you still need the registered deed and a clean title trail behind it. Knowing what mutation does and does not do, the next thing to settle is when it should happen and who has to start it.

When should mutation happen, and who starts it?

Mutation should be initiated as soon as the sale deed is registered, or when rights pass by inheritance, gift or partition. The answer to when is straightforward: right after the deed is registered, without waiting. The person acquiring the rights is the one who initiates it, and who must report the change so the record is updated. This reporting obligation sits in the Karnataka Land Revenue Act, 1964, at sections 128, 129, 133 and 136 (Prashastha Legal). In practice the acquirer, or the acquirer's advocate, files or triggers the mutation rather than waiting for the office to notice the sale.

One change from 2026 matters here. From February 2026, Karnataka began rolling out automatic e-mutation: a registered sale deed can automatically update the pahani, the RTC, through integration of Kaveri 2.0 with the Bhoomi platform (KSandK; The Hindu, 4 February 2026). Under the older system a separate mutation application to the tahsildar was required after the sale was registered.

Automatic does not mean effortless or guaranteed. The reform is scoped to registered sale transactions, and it does not remove the risk in a deal. Inheritance, gift and partition still need a mutation application, so the heir or the donee must apply. Disputes still require inquiry, and a registered transfer that updates the record does not by itself clear a title defect or an unrecorded encumbrance (KSandK). Treat the automation as a help rather than a guarantee. That leaves the practical question of how mutation is actually carried out, and what documents you need to bring.

How is mutation done in Karnataka, and what documents are required?

Mutation in Karnataka runs on two routes, the Bhoomi revenue route for agricultural land and the Khata route for urban property, and both start from the registered deed and end with an updated record. For farmland the record updated is the RTC on the Bhoomi platform; for a city property it is the Khata held by the municipal body.

For agricultural land, the steps are:

  1. Assemble the registered sale deed and the supporting records.

  2. Apply at the Taluk office, or online through Bhoomi or a Grama One centre.

  3. Local verification is carried out by the Revenue Inspector.

  4. A Mutation Register (MR) number is issued, and a public notice and objection window opens.

  5. If no objection is raised, the officer certifies the change and the RTC is updated.

  6. Collect the mutation extract as proof of the updated entry.

(Prashastha Legal; the Bhoomi Mutation Extract service.)

For urban property, the route is the BBMP e-Aasthi or e-Khata system for the Khata transfer (Prashastha Legal).

The documents required for a sale-based mutation are:

  • The registered sale deed.

  • The Encumbrance Certificate (EC).

  • The latest RTC or Khata extract.

  • The latest tax-paid receipt.

  • ID proof.

(Prashastha Legal.)

Two records often sit next to mutation in a buyer's file without being part of mutation itself: the DC conversion order, which shows agricultural land was converted for its intended use, and the PTCL status, which flags whether the land carries transfer restrictions under PTCL. Your advocate checks these alongside the mutation, and they are worth gathering at the same time. With the paperwork filed, the next practical questions are what it costs and how long it takes.

How much does mutation cost, and how long does it take in Karnataka?

The mutation fee in Karnataka is a government entry fee plus certified-copy charges for the mutation extract, and it is modest rather than a percentage of the property value. On how much it costs, one land-records aggregator reports about 35 rupees per mutation entry, plus nominal certified-copy and survey charges (bhoomi-rtconline, 26 June 2026, a secondary source); national explainers put the wider range at roughly 25 to 200 rupees (Bajaj Finserv). Treat these as indicative, not settled figures.

On how many days it takes, the same secondary source reports about 15 to 30 days for a straightforward case, 30 to 60 days where field verification is required, and longer where objections are raised (bhoomi-rtconline, 26 June 2026). So the cost is low and the timeline runs from a few weeks to a couple of months, set mainly by whether field verification and objections come into play. What makes the timeline worth planning around is what a pending mutation holds up.

What does a pending mutation block?

A pending mutation leaves the record naming the previous holder, and that can block resale, loan sanction and compensation until the record is corrected. Each blockage is concrete:

  • Resale: a buyer or a title company will reject records that still name the previous holder, so a sale can stall on it (Prashastha Legal).

  • Loan: banks require a current RTC or Khata in the applicant's name before sanctioning a home loan against the property (Prashastha Legal).

  • Compensation: land-acquisition compensation and government services follow the recorded holder, not the deed-holder, so a payout can go to the wrong name if the record still shows the seller.

This is why you cannot treat a pending mutation as a paperwork detail to leave for later. If someone asks whether you can sell property without mutation, the honest answer is that you can attempt a sale, but the buyer, the bank or the title company will resist a record that does not yet name you. The compensation point deserves attention for farmland near expanding infrastructure, where an acquisition payout tracks the recorded holder. The route to the record is not the only variable here, because inherited and gifted property reach the same record by a different path.

How is mutation different for inherited or gifted property?

Inheritance mutation starts from proof of succession rather than a sale deed, so the heir applies with a death certificate and legal-heir proof, and where there are several heirs each share has to be recorded. The document set for an inheritance mutation is the death certificate, the legal-heir details or a legal-heir certificate and family tree, the will if there is one, any NOCs or affidavits required, and the current RTC or Khata with tax proof (Prashastha Legal).

Gift mutation works differently again. It follows the registered gift deed through the same MR-to-RTC flow as a sale, because a gift, once registered, is a transfer on record like any other.

The trap in inheritance is shares. Where several heirs inherit, each heir's share must be clearly documented, or objections arise and the mutation stalls while the family sorts out who holds what. Families that are unsure about succession paperwork tend to discover the gap at exactly the wrong moment, when they try to sell or raise a loan. Once the right route is followed, the question that remains is how you confirm the record actually changed.

How do you confirm your mutation actually went through?

To confirm a mutation, check the Bhoomi mutation status and the updated RTC for rural land, or the Khata for urban property, and make sure the record shows your name, the correct survey number and your share. The steps are practical:

  • For rural land, use the Bhoomi portal's mutation-status tool. Enter the district, taluk, hobli, village and survey number, then view or download the mutation extract that confirms the entry.

  • For urban property, check the BBMP e-Khata portal or collect the Khata certificate.

  • Cross-check the details against your registered deed: the applicant name, the share, the survey number and the boundaries should all match.

When you check mutation online, do not stop at seeing that a request exists; confirm that the entry is completed and the RTC or Khata now names you. A sensible cadence is to follow up around 30 days after filing to see the status move, which is good practice rather than a rule (1acre.in). The MR number issued during the process is your reference if you need to chase it. Once you have confirmed the record yourself, the last step is equipping the person who clears the deal, your advocate.

What should you hand your advocate?

Your advocate needs the mutation record alongside the rest of the title trail, so hand over the updated RTC or Khata, the mutation extract, the EC and the registered sale deed. With those in front of them, the advocate can confirm that the record matches the title, that the person on the record is you, and that nothing in the chain is open. It helps to add the two adjacent records that sit near mutation without being part of it, the DC conversion order and the PTCL status, so the advocate can check the whole set at once.

This is what a document pack is for: an indexed title-and-records set that a buyer's advocate reviews, of which the mutation extract is one part. Handing over a complete, ordered pack is faster than producing papers one at a time when a query comes up.