Unsigned Contract but Work Started: Can You Enforce It?

The job started with two long phone calls and a draft on email. The price was discussed, the timeline was agreed, the WhatsApp message said "Yes, please go ahead, we will sign tomorrow." The first invoice was paid. The second invoice came back with silence. Now, two months in, the client is saying — "We never signed any contract. There is no contract." For a small contractor, a freelance designer, a vendor delivering custom equipment, this can feel like the floor has dropped. The fear is simple: if there is no signed paper, can I make them pay for the work I have already done? The good news is that Indian contract law has thought about this for a long time, and the answer in most cases is yes — provided you have the right evidence and you do not panic into the wrong remedy. This guide walks you through how the law sees acceptance by conduct, when work itself counts as agreement, and the two safety nets — part performance and quantum meruit — that catch many of these cases when the formal contract slips through the cracks.

Why a Signature Is Not Essential

Most people instinctively believe that "no signature means no contract". Indian contract law does not start from this idea. It starts from the idea of a meeting of minds.

Section 10 of the Indian Contract Act, 1872 lists the essentials of a contract — free consent, capacity, lawful consideration, lawful object, and an absence of any provision declaring the agreement void. There is no requirement of a signature, and no requirement that the contract be in writing in most situations. The proviso to Section 10 saves any other law that may require writing or registration for specific kinds of contracts (sale deeds, leases, partnership deeds and so on). Outside those special cases, the rule is silence on form.

The Supreme Court in Aloka Bose v Parmatma Devi, AIR 2009 SC 1527 said that even an oral agreement to sell immovable property is valid; a written agreement signed by only one of the parties, evidencing such an oral agreement, is also valid. The Gauhati High Court in Md Mohar Ali v Md Mamud Ali, AIR 1998 Gau 92 went further — an agreement for sale need not even be signed by both parties. These were not eccentric judgments; they applied the plain text of Sections 10 and 11.

So when the other side says "we never signed", the real question is not whether they signed. The real question is whether their words, conduct and communication, taken together, show acceptance.

Acceptance by Conduct: Sections 7, 8 and 9

Three short provisions of the Contract Act do most of the heavy lifting here.

Section 7 deals with what acceptance must look like. It must be absolute and unqualified, and must be expressed in some usual and reasonable manner — unless the proposal prescribes a particular mode.

Section 8 is the one that often saves the day in unsigned-contract disputes. It says: Performance of the conditions of a proposal, or the acceptance of any consideration for a reciprocal promise which may be offered with a proposal, is an acceptance of the proposal. Read that twice. If the offer was — "Build me a website by Tuesday for two lakh rupees, half advance" — and the other side begins building, taking the advance, that performance is in itself acceptance.

Section 9 deals with implied promises. It provides: In so far as the proposal or acceptance of any promise is made in words, the promise is said to be express. In so far as such proposal or acceptance is made otherwise than in words, the promise is said to be implied. A promise can be implied from gestures, body language, actions and even omissions.

The classic illustration in the textbooks is the newspaper-and-coin transaction at a stand: the customer hands the coin without saying a word, the shopkeeper hands the newspaper. There has been no signed agreement, no spoken agreement, perhaps not even eye contact — yet a contract was formed and performed.

Indian courts have applied the same principle to commercial settings: a vendor who begins fabrication after a purchase order email and delivers; an architect who hands over drawings against a client's verbal instruction; a contractor who works to a written quotation that the client never formally signed but acted upon. In each case, the conduct of the recipient — accepting the work, taking the goods, paying part of the price — is treated as acceptance.

The Objective Test the Court Applies

The next obvious worry is — what if the other side now claims they never really meant to enter the contract? "We were just discussing. We did not actually agree." Indian courts have an answer for this too. They apply the objective test.

The court does not try to peer into the mind of the parties. It looks at what they said and did. The question is — what would a reasonable, ordinary person, looking at this exchange of words, emails, payments and conduct, understand the parties to have agreed? That objective view is what governs.

Lord Denning's well-known summary of the principle — quoted in commentary and applied in Indian courts — is the cleanest version of it: in contracts, you do not look into the actual intent in a man's mind; you look at what he said and did. A contract is formed where, to all outward appearances, a contract exists. Storer v Manchester City Council, (1974) 3 All ER 824.

What this means in practice is straightforward. If your emails, your WhatsApp messages, your invoices, your delivery records, your payment records and your meetings together would lead a reasonable observer to conclude that the parties had reached a deal — a court will treat the deal as having been reached, even if the other side now insists they were "still negotiating".

This protects honest performers. It also keeps the courts out of guessing games about people's secret thoughts.

Part Performance for Immovable Property: Section 53A TPA

For one specific kind of unsigned-or-imperfect-contract case — those involving immovable property — Indian law adds a separate, special protection. This is the doctrine of part performance under Section 53A of the Transfer of Property Act, 1882.

The simple version: if a person has, under a written contract to transfer immovable property, taken possession of the property (or continued in possession after part performance), and has done some act in furtherance of the contract — paid money, made improvements, taken physical possession — and is willing to perform his part, the transferor cannot claim back the property merely because the document was unregistered or otherwise defective.

It is a shield, not a sword. The buyer cannot use Section 53A to demand that the seller execute a registered sale deed. He can use it to defend against being thrown out by the seller. The provision protects the buyer's possession.

After the 2001 amendment, the agreement must be in writing and signed by the transferor for Section 53A to apply. So Section 53A no longer helps where the agreement was purely oral — but it is still a powerful safety net where the document existed but was not registered, or the formalities slipped.

If your case involves immovable property, this is a separate piece of the puzzle. A property lawyer should look at the specific facts — when possession was taken, what was paid, what writing exists — before any move is made.

When the Contract Fails but the Work Was Done: Quantum Meruit

Sometimes, despite all the conduct and communication, the court may decide that no concluded contract was actually formed. Maybe key terms were left genuinely open. Maybe the negotiation broke down before there was a meeting of minds. In such cases, the law does not leave the performer empty-handed. It gives him quantum meruit.

Quantum meruit is Latin for "as much as is earned". It is a remedy that allows a party who has done work — even where the contract is unenforceable, abandoned, prevented from being completed, or never quite formed — to recover reasonable compensation for the value of the work actually done.

The amount is not the contract price (because there may be no enforceable contract). It is the fair market value of the time, material and effort actually put in. Courts often arrive at it through expert evidence on prevailing rates, comparable jobs, and the actual benefit the recipient received.

For a vendor who has delivered partial work and been paid an advance, quantum meruit is often a reliable second line of defence. For a buyer who has paid an advance and received nothing, the equivalent remedies sit in Sections 65 and 70 of the Contract Act — recovery for benefit conferred under a void agreement or without intention to do it gratuitously.

The practical takeaway: even where the unsigned contract is genuinely uncertain, the work done is rarely uncompensated. The legal architecture has multiple layers.

The Evidence That Saves These Cases

The law is on your side. The case is won or lost on the evidence. In every unsigned-contract dispute, the difference between a clean win and a long, uncertain fight is the quality of the paper trail you can show.

The kinds of evidence courts find most useful are:

• Email exchanges setting out scope, price, timeline and acceptance. Even informal emails count.
• WhatsApp and SMS messages — especially "go ahead", "approved", "send invoice", and similar acceptances. Preserve these in their original form.
• Quotations, proposals, and draft agreements that the other side replied to without rejecting the terms.
• Purchase orders, work orders or letters of intent, even if marked "draft".
• Bank transfer records showing advance or part payments. These are powerful — paying money is conduct.
• Invoices issued and received without dispute. A silent acceptance of an invoice is an admission.
• Delivery challans, GRNs, dispatch records showing the work was handed over.
• Daily progress logs, site photographs, performance reports for ongoing service contracts.
• Meeting minutes or call notes circulated by email and not contradicted.
• Witnesses — colleagues, employees and intermediaries who saw the dealings and can depose.

One small but important rule applies to contemporaneous evidence — keep it as it was created. Forwarding a WhatsApp screenshot is fine, but the original chat on the original device is gold. Preserve the device, preserve the email account, take certified printouts where needed.

What Should I Actually Do Now?

If you are caught in an unsigned-contract dispute right now — work begun, work paid for in part, now disputed — work through the following:

1. Stop the bleeding. If work is still going on and you are unpaid, decide whether to pause delivery. Send a written notice flagging the unpaid invoice and reserving rights, before you suspend.
2. Map the timeline. Make a clean spreadsheet — date of first communication, exchange of scope and price, advance payment, work begun, milestones, partial deliveries, payments received, last communication.
3. Collate every piece of communication. Email, WhatsApp, SMS, calls (with dates and durations from your call log). Save in chronological order.
4. Pull bank statements and invoices. Highlight the advance, the part payments, the matching invoices and the dates.
5. Send a calm but clear legal notice. A well-drafted notice setting out the agreed terms, the work done, the payments due, and the consequences of non-payment, often resolves the matter without litigation. Breach and enforcement options can be set out in this notice itself.
6. Decide your forum. A civil suit for recovery and damages, an arbitration if there is even an oral arbitration clause, or — for very specific service contracts to consumers — a consumer forum.
7. Plead in the alternative. Ask the court for damages on the unsigned contract and, in the alternative, quantum meruit. Pleading in the alternative is good practice.
8. For property cases, check Section 53A. If immovable property and possession is involved, the protection of part performance may be available.
9. Do not destroy "informal" exchanges. A casual WhatsApp message can decide your case. Preserve everything.
10. Talk to a contracts lawyer early. The quality of the first legal notice often decides whether the case settles or drags.

Clients often reach Pinaka Legal in exactly this situation — work begun, signature missing, the client's lawyer denying the deal. The first job is rarely litigation. It is usually a careful look at the paper trail, a properly drafted demand notice, and a frank conversation about whether the case is best fought in court, in arbitration, or quietly settled. The earlier this conversation happens, the cheaper everyone's outcome.

Do Not Walk Away From the Work You Did

The hardest moment in any of these disputes is not legal. It is psychological. The other side denies the deal, and you start to wonder whether you were imagining the whole thing. The instinct is to drop it, write off the loss, move on. Do not.

Indian contract law has been built, over more than a century, around a single intuition — that work done in good faith on a shared understanding deserves protection. The Contract Act says it through Sections 7, 8 and 9. The Transfer of Property Act says it through Section 53A. Quantum meruit says it through equity. The courts say it through the objective test. None of these depends on a signature on a piece of paper.

What they do depend on is your willingness to organise the evidence, send a clean legal notice, and, if needed, walk into a courtroom. Do that, and the law will, in most cases, recognise the deal you actually made — even if the other side has stopped recognising it themselves.

Frequently Asked Questions

Is an unsigned contract enforceable in India?

It can be. Indian contract law does not require a contract to be signed (or even written) to be valid in most situations. Section 9 of the Indian Contract Act, 1872 says that promises can be express (in words) or implied (otherwise than in words). If parties have communicated essential terms and acted on them, a court can find a binding contract even without a signed document. The Supreme Court in Aloka Bose v Parmatma Devi held that even an oral agreement to sell can be valid, and a written agreement signed by only one party can evidence such a contract.

What is acceptance by conduct?

Acceptance by conduct is when a person agrees to an offer not by saying yes or signing a document, but by doing what the offer asked or starting the work it described. Section 8 of the Indian Contract Act treats the performance of the conditions of a proposal as acceptance of the proposal. So if a vendor begins delivery and the buyer takes the goods and pays, the buyer's conduct is acceptance, even without a signed purchase order. Indian courts regularly enforce such contracts based on documented conduct.

What sections of the Contract Act apply to acceptance by conduct?

Three short provisions matter. Section 7 says acceptance must be absolute and unqualified, and expressed in some usual and reasonable manner. Section 8 says performance of the conditions of a proposal, or the acceptance of any consideration for a reciprocal promise offered with a proposal, is an acceptance of the proposal. Section 9 says promises and acceptance can be express (in words) or implied (otherwise than in words). Read together, these mean acceptance can be by performance, conduct, or actions.

What is part performance under Section 53A of the Transfer of Property Act?

Section 53A of the Transfer of Property Act, 1882 protects a buyer who has taken possession of immovable property under a written but unregistered (or otherwise defective) agreement to sell, and who has performed or is willing to perform his part. The seller cannot sue to throw the buyer out merely on the ground that the document is unregistered. The doctrine creates a shield, not a sword — it cannot be used to demand registered title, but it can be used to defend against eviction. After the 2001 amendment, the agreement must be in writing and signed for this protection.

What is quantum meruit?

Quantum meruit is a Latin phrase meaning as much as is earned. It is a remedy available where a contract is partly performed but cannot be enforced for some reason — perhaps because it is unenforceable, was abandoned, or was prevented from being completed. The court awards reasonable compensation for the work actually done, based on what it was worth, not on the contract price. So even if the contract itself fails, the party who put in time, money or material can usually recover the value of that work.

What evidence helps prove an unsigned contract?

Anything that records communication of essential terms or shows performance. Useful items include: emails, WhatsApp and SMS exchanges that confirm price, scope and timeline; quotations and invoices, even if marked draft; advance payments and bank transfer records; delivery challans and goods receipt notes; site photographs, daily logs, and progress reports; correspondence acknowledging receipt of work; meeting minutes; and witnesses who saw the dealings. The objective test is what a reasonable person would understand from the conduct and communication taken together.

Does the court look at what each party privately intended?

No. Indian courts apply an objective test. Lord Denning summarised the principle: in contracts, you do not look into the actual intent in a man's mind; you look at what he said and did. A contract is formed where, to all outward appearances, a contract exists. So if the words and conduct of both parties together would lead a reasonable person to think a contract was made, the court will treat it as made — even if one of them now claims a private mental reservation.

What if the parties were still negotiating when work began?

This is a common grey area. If the basic terms — what is to be done, by when, for how much — were agreed and the work started on that basis, a court can hold that a contract was concluded even if some incidental terms were left to be finalised. If, however, key commercial terms were still in dispute when work began, the court may treat the relationship as a non-contractual one and award compensation under quantum meruit only. The clearer your written or electronic record of agreed terms, the easier the case becomes.

Can I claim damages on an unsigned contract?

Yes, if you can show a binding contract was formed by conduct or oral agreement, and the other side breached it. Sections 73 and 74 of the Indian Contract Act govern damages for breach. The challenge is usually proof, not principle. Where the contract itself cannot be proved as such, but you did real work, quantum meruit can fill the gap with reasonable compensation. Either way, evidence of communication and performance is critical.

How can I avoid this mess in the next deal?

Sign first, work later. Even a one-page letter agreement, signed by both sides and stamped where required, will save you huge stress later. If the other party drags feet on signing, send a clear email or message recording the agreed terms and asking for written acceptance. Begin work only after some written acknowledgement, even by email. Take advance to confirm intent. Keep a paper trail of every change. Most disputes about unsigned contracts could have been avoided with five minutes of paperwork at the start.

For more articles on Indian law, visit the Pinaka Legal Blog.

Written by the Pinaka Legal Editorial Team. For queries, call +91 8595704798 or email info@pinakalegal.com.