Informed consent before surgery in India: what your signature actually means

Most people in India meet informed consent as a sheet of paper, usually handed over the evening before an operation, often in English, sometimes by someone who is not the surgeon. It gets signed at the nursing station between a blood test and a fasting instruction. The signature then sits in the case file as proof that the patient agreed to whatever happened next.

That is not what the law means by consent. The form is a record that a conversation took place. The consent is the conversation — what you were told, whether you understood it, and whether you were free to say no. If the conversation did not happen, the signature does not repair it. This post sets out what Indian law actually requires, what a form ought to name, and the questions worth asking before anyone hands you a pen.

The case that set the standard: Samira Kohli

The leading Indian judgment is Samira Kohli v Dr Prabha Manchanda, decided by a three-judge bench of the Supreme Court on 16 January 2008. The patient had agreed, while under anaesthesia for what she understood to be a diagnostic laparoscopy, to nothing further. During the procedure the surgeon decided that removing her uterus and ovaries was in her interest, obtained the agreement of her mother, who was waiting outside, and went ahead.

The court held that this was not valid consent. It summarised the law in a set of principles that remain the reference point for every consent dispute in India. The most important for a patient are these: consent must be real and valid, which means the patient must have capacity, must give it voluntarily, and must have been given adequate information. Consent for a diagnostic procedure is not consent for a therapeutic one. And consent for one operation does not extend to a different operation simply because the surgeon thinks it would benefit the patient.

Consent given only for a diagnostic procedure, cannot be considered as consent for therapeutic treatment.

Supreme Court of India, Samira Kohli v Dr Prabha Manchanda (2008)

The court allowed one exception: an additional procedure that is necessary to save life or preserve health, where it would be unreasonable to delay until the patient regains consciousness. Convenience, and the surgeon's view that it would be better to do it now, are not enough. The surgeon in that case was denied her fee and ordered to pay compensation.

One point cuts the other way, and it is worth knowing. The court declined to adopt the stricter American standard, under which a doctor must disclose everything a reasonable patient would want to know. In India the extent of disclosure is judged by what a responsible body of medical opinion would consider normal and proper for that patient and that treatment. Remote or theoretical risks need not always be listed. Substantial ones must.

What valid consent requires

Pulling the judgment and the professional conduct regulations together, valid consent for an operation in India has three parts. None of them is satisfied by a signature alone.

The professional conduct regulations that bind registered doctors add a formal requirement: before performing an operation, the doctor should obtain consent in writing from the patient, or from the parent or guardian in the case of a minor. Writing is the evidence. The three conditions above are the substance.

Language matters more than most hospitals admit. Information you did not understand is not information you were given. If the explanation was in a language you do not follow, or full of terms nobody translated, you are entitled to ask for it again in words you do understand, and to have someone you trust present while it is given.

What a consent form should name

Hospitals use their own forms and there is no single national template that every establishment must follow. A form that does its job, however, tends to record the same things, and a form missing several of them is worth questioning before you sign rather than after.

• The patient's name, age and hospital number, and — where someone else is signing — that person's name and relationship to the patient.
• The procedure, named in full, and on the correct side or site where that applies.
• The name of the surgeon who will perform it, or who will be responsible for it if a team is operating.
• The type of anaesthesia proposed, or a reference to a separate anaesthesia consent.
• The principal risks discussed, in plain words rather than a printed list nobody reads.
• Any additional procedure the surgeon anticipates may become necessary, named specifically.
• Whether tissue may be sent for examination, and whether photographs or video will be taken and for what purpose.
• The date and time of signing, the signature of the doctor who explained it, and the signature of a witness.

Watch for the clause that consents to ‘any other procedure the surgeon considers necessary’. After Samira Kohli, a blanket clause of that kind does not authorise a different operation unless it is genuinely needed to save life or prevent serious harm. It is still better to ask what, specifically, the surgeon has in mind, and to have it written down.

High-risk consent, and consent for anaesthesia

Many Indian hospitals use a separate high-risk consent when a patient's condition makes an operation more dangerous than usual — advanced age, a serious heart or lung condition, an emergency operation on someone already unwell. This is a hospital practice rather than a separate legal category. Its purpose is to record that the increased risk was explained, including, where relevant, the risk of death or of needing intensive care afterwards.

A high-risk form is not a waiver. Signing it does not excuse negligence, and it does not mean the hospital is no longer responsible for the standard of care. What it does mean is that the family was told the odds. If you are asked to sign one, ask what makes this case high-risk, what that changes about the plan, and whether anything could reduce the risk before the operation.

Anaesthesia is a separate set of risks managed by a separate doctor. In most hospitals the anaesthetist sees the patient before the operation, reviews their history and medicines, and takes a separate consent. If no anaesthetist has spoken to you before the day, ask when that will happen. You are entitled to know who will be giving the anaesthetic, what kind is proposed and why, and what the alternatives are. Anaesthesiologists are registered doctors with their own postgraduate training; the specialties index explains how anaesthesiology sits alongside surgical specialties.

Minors, and adults who cannot decide for themselves

For children, consent is given by a parent or guardian. Indian criminal law, now in the Bharatiya Nyaya Sanhita, protects an act done in good faith for the benefit of a child under twelve, or a person of unsound mind, with the consent of their guardian. In practice, hospitals ask for a parent's or guardian's signature for any patient under eighteen. Many doctors also explain the procedure to an older child directly and seek their agreement, which is good practice even where the law does not strictly require it.

For an adult who has lost capacity — unconscious, heavily sedated, or unable to understand because of illness — the position is less tidy. The law protects a doctor who acts in good faith for a patient's benefit when it is impossible for that patient to signify consent and there is no time to obtain it from someone lawfully in charge. Outside a true emergency, hospitals usually seek the agreement of the next of kin. That agreement is a practical safeguard, not a substitute for the patient's own consent if the patient is able to give it.

That last point is what went wrong in Samira Kohli. The patient was a competent adult who had been temporarily anaesthetised. Her mother's agreement could not stand in for hers, because the patient could have been asked once she woke up.

Emergencies: when consent can wait

A genuine emergency changes the order of events. Where a patient cannot consent and delay would cost life or cause serious harm, a doctor may act without consent, and a hospital's duty to stabilise does not wait for paperwork. The rights that apply in that situation are set out in emergency treatment rights in India.

What an emergency does not do is suspend consent for everything that follows. Once a patient is stable and able to decide, further non-urgent procedures need their agreement in the ordinary way.

The right to refuse, and to change your mind

A competent adult may refuse treatment, including treatment their doctors strongly recommend. The Supreme Court's Constitution Bench judgment in Common Cause v Union of India (2018), which recognised advance medical directives, rests on the same principle of bodily autonomy: decisions about your body are yours. The court simplified the procedure for advance directives in January 2023.

You may also withdraw consent you have already given, at any point before the procedure begins, without giving a reason. A hospital may ask you to sign a form recording that you refused or left against medical advice. That is reasonable, and signing it does not forfeit any other right, including the right to your records and a discharge summary.

Refusing is not the same as walking away from care. If you are unsure, the better course is usually to ask for time, and for the reasons in writing, and to take the records to another doctor. Getting a second opinion in India explains how to make that visit useful.

Questions to ask before you sign

1. Who will be doing this, exactly?Ask for the name of the surgeon who will operate and the anaesthetist, and whether trainees will take part. Consent given for one surgeon does not automatically cover another. You can check any doctor's registration before the day using the guide to checking a doctor's registration.
2. What is the operation for, and what are the alternatives?Ask what the operation is expected to achieve, what other options exist, including a non-surgical one, and what is likely to happen if you wait or decline. These are the items the Supreme Court said a doctor should disclose.
3. What are the main risks for me?Not the printed list, but the risks the surgeon would mention to a relative of their own. Ask how common they are in this hospital's experience if the surgeon is willing to say, and what happens if one occurs.
4. What else might be done once I am asleep?If the surgeon anticipates any additional procedure, ask for it to be named on the form. If you do not want anything beyond the stated operation without being woken and asked, say so and have it recorded.
5. What will it cost, and what is excluded?Cost is not part of legal consent, but it is part of a decision you can live with. Ask for a written estimate and what it leaves out — implants, consumables and the management of complications are the usual omissions.
6. Can I have a copy, and time to think?For anything that is not an emergency, you may take the form home, read it, and come back. A hospital that will not allow that is telling you something about how it treats questions.

When consent goes wrong

If an operation was performed without valid consent — a different procedure from the one agreed, a procedure done by someone you did not agree to, or consent taken in circumstances where you could not decide freely — there are three routes, and they do different things. The state medical council can discipline the doctor. A consumer commission can award compensation for deficiency in service. And the hospital's own grievance mechanism can sometimes resolve things faster than either. The procedures are set out in how to complain about a doctor in India, and the wider set of entitlements in your rights as a patient.

The single most useful thing you can do is write down, as soon after the conversation as possible, who explained the procedure, when, and what they said. A dated note in your own hand carries real weight. If you are still choosing who to see, you can browse doctors by city and speciality and read how we verify what appears on a profile.

General information about how healthcare in India is organised and regulated, current at 8 Oct 2026. Not advice about your situation, and not for emergencies — call 108. Errors can be reported through the corrections process.