Appointment Letters Are Now Mandatory in India: Rule 6, the 16 Fields, and the Deadline That Already Passed

Search for whether appointment letters are mandatory in India and you will find a great deal of writing that says the same two things: that the new labour codes have made them compulsory, and that employers have three months to catch up on the staff who never got one.

The first is broadly right. The second is a window that closed on 21 February 2026.

The three month period is not in the 2026 rules, which is where most coverage places it. It sits in section 6(1)(f) of the Occupational Safety, Health and Working Conditions Code, 2020, and it runs from the commencement of the Code. The Code commenced on 21 November 2025. Three months from that date is 21 February 2026, which means that for a great many Indian employers this is not a deadline to plan for. It is a compliance gap that has been open for months and is still running.

This article sets out what the law actually says, reading from the Code and from the gazette notification rather than from summaries, which on this topic have been unusually unreliable. It covers exactly what the letter must contain, who is caught and who is not, what the exposure is, and the most practical way to fix it if you are behind.

What actually changed, and on what date

Two separate instruments matter here, and conflating them is the source of most of the confusion.

The first is the Code. All four labour codes were brought into force on 21 November 2025. Section 6 of the OSH Code lists the duties of every employer, and clause (f) is the appointment letter duty. It has two limbs. Going forward, the employer must issue a letter of appointment to every employee on appointment. Looking backwards, where an employee had not been issued an appointment letter on or before the Code commenced, that employee had to be given one within three months of commencement.

The second is the format. Section 6(1)(f) requires the letter to carry "such information and in such form as may be prescribed by the appropriate Government", and until that prescription existed there was nothing to comply with in terms of content. The Ministry of Labour and Employment notified the Occupational Safety, Health and Working Conditions (Central) Rules, 2026 by notification G.S.R. 345(E) on 8 May 2026. Rule 1(3) of those rules says they come into force on the date of their publication in the Official Gazette, so the prescribed format has been live since 8 May 2026 with no transition period of any kind.

The deadline that has already passed

Take the arithmetic slowly, because the conclusion is uncomfortable and worth being sure of.

Section 6(1)(f) provides that where an employee "has not been issued such appointment letter on or before the commencement of this Code, he shall, within three months of such commencement, be issued such appointment letter". Commencement was 21 November 2025. Three months later is 21 February 2026. From 22 February 2026, an employer holding staff with no appointment letter has been in breach of a statutory duty, and remains in breach for every day the letter is still not issued.

This matters more than a missed date usually would, for two reasons. It is a continuing default rather than a one off, and it is trivially provable. An inspector does not need to reconstruct anything. They ask for the letters, and either the file has them or it does not.

If you are in this position, the sensible response is not to wait for a clarification that may never come. It is to issue letters now, in the Rule 6 format, dated when they are actually issued rather than backdated. Backdating a statutory document to paper over a gap converts a compliance failure into a document you would not want to be asked about, and the underlying default is not cured by the false date in any event.

Rule 6 and the sixteen things the letter must contain

Rule 6 of the OSH Central Rules, 2026 reads: "No employee shall be employed in any establishment unless an appointment letter has been issued to such employee in the format given below." What follows in the gazette is a list of sixteen numbered items and a signature block.

Before the list, one correction. A number of widely republished summaries state that the letter must be issued "in Form 6" or "in Form VI". There is no such form. Rule 6 sets the format out inline, in the body of the rule itself. Rule 2(1)(b) defines "FORM" as the forms annexed in Annexure VII to the rules, and the appointment letter is not among them. If you have been hunting for a numbered form to download, that is why you have not found it.

The five fields most existing templates have never carried

If you already issue appointment letters, the temptation is to assume yours is fine. In practice a standard Indian appointment letter, of the kind circulating as a template for the last decade, is missing about a third of this list. The items that reliably catch people out:

Labour Identification Number of the establishment.The LIN is your establishment's identifier on the Shram Suvidha portal. It belongs to the business, not the employee, and most letters have never carried it because there was no reason to. If you do not know yours, that is the first thing to retrieve.

Universal Account Number and ESIC insurance number.Qualified with "if available", which is the drafting acknowledging that a first time employee will not have a UAN at the point of joining. It is not a licence to leave the field off the template.

Type of employment. A three way classification: regular, fixed term, or contractual. This is a substantive change rather than a formatting one, because fixed term employment now carries gratuity after a single year of service rather than five, so what you write in this field has direct financial consequences. We covered that shift in detail in the article on gratuity for fixed-term employees.

Category of skill. Unskilled, semi-skilled, skilled or highly skilled. This is the classification minimum wage rates are set against, so an inconsistency between what the letter says and what you actually pay is an invitation to a question you would rather not answer.

Maternity benefit entitlement for women employees.A positive obligation to state the benefit in the letter itself. A general reference to "company policy" is not what the rule asks for.

One field has moved the other way. Aadhaar is qualified "after obtaining consent", so a worker who does not wish to share it cannot be compelled to as the price of a letter. If your onboarding treats Aadhaar as a mandatory field, that is now the wrong default. The same instinct, that collecting more identity data is always safer, is the one we pushed back on in the article on the DPDP Act and attendance data.

Does this apply to your business? The ten worker line

Most coverage of this topic says the requirement applies to every employer regardless of size. For this Code, that is not correct, and the distinction is worth getting right before you either panic or relax.

The duty in section 6 is owed by the employer of an establishment. Section 2(1)(v) defines an establishment as a place where any industry, trade, business, manufacturing or occupation is carried on in which ten or more workers are employed, along with specified categories such as motor transport, construction and plantations at the same threshold, and mines, ports and dock work with no threshold. A proviso removes the ten worker threshold entirely for establishments carrying on hazardous or life threatening activity as notified by the Central Government.

So a nine person retail shop is not caught by OSH Rule 6. That is not the same as saying it owes nothing. Most state Shops and Establishments Acts independently require a written appointment letter or written particulars of employment, with their own contents and their own deadlines, and those Acts continue to apply. The honest summary for a small employer is that the central obligation probably does not reach you, the state one probably does, and the sixteen item format is a good template to adopt anyway because it is the direction every state rule is moving in.

What it costs to ignore

Section 6(1)(f) carries no penalty of its own, which routes it to the general penalty in section 94 of the Code. That section provides that where there is any contravention of the Code or the rules for which no penalty is expressly provided, the employer "shall be liable to penalty which shall not be less than two lakhs rupees but which may extend up to three lakh rupees", and where the contravention continues after conviction, a further penalty extending to two thousand rupees for each day the contravention continues.

Two features of that wording deserve attention. The two lakh figure is a floor, not a ceiling, and it is expressed as a minimum the adjudicating authority does not have discretion to go below. And the daily accrual attaches to continuation, which is precisely the shape of a missing appointment letter: it is not an event that happened once, it is a state of affairs that persists until you fix it.

No decided case imposing this penalty for a missing appointment letter was found while writing this, which is unsurprising given how recently the rules were notified. The point is not that enforcement is imminent. It is that the exposure is unusually easy to establish, and unusually cheap to eliminate.

Where the standard Indian appointment letter falls short

Our own appointment letter format page carries a full template with the clauses that matter in a dispute: probation, notice, confidentiality, termination grounds. Those clauses are still right, and Rule 6 does not displace any of them. What Rule 6 adds is a compliance layer that sits alongside them.

The cleanest way to think about it is that a compliant letter now has two halves. The statutory half is the sixteen items, which is essentially a data sheet. The contractual half is everything that governs the relationship, which the rules do not prescribe and which you would be unwise to drop, because nothing in the sixteen items tells an employee what their notice period is or what happens at the end of probation.

A word on contract workers, because the format explicitly recognises "contractual" as a type of employment. If you engage workers through a contractor, the appointment letter obligation does not evaporate into the contractor's paperwork. Principal employers who have never seen their contractor's appointment documentation should ask for it, on the same reasoning that applies to wage registers.

How to backfill without stopping work

For an employer with sixty people and no letters on file, the obstacle is almost never the legal question. It is that the sixteen items are scattered. Dates of joining live in one place, UANs in the PF portal, wage components in a payroll sheet, skill category nowhere at all, and assembling sixty letters by hand from four sources is a week of somebody's life and a reliable source of transcription errors.

That is the honest argument for holding employment records in one system rather than across spreadsheets and chat groups, and it is worth stating plainly rather than dressing up. Shiftelio keeps the employee record, wage structure, joining date and leave in one place per business, and generates letters from that record on A4 as PDFs, so the fields in the letter are the fields in the system rather than a retyped copy of them. If you are issuing sixty letters that must each carry a designation, a date of joining and a wage breakdown that matches what payroll actually pays, generating them from the record that produces the payslip is the difference between an afternoon and a fortnight.

Whatever you use, three things make the exercise survivable:

Retrieve your LIN once. It is the same on every letter. Get it from the Shram Suvidha portal and put it in the template, not in sixty individual documents.

Decide skill categories as a policy, not per person. Map each role in your business to unskilled, semi-skilled, skilled or highly skilled once, write it down, and apply it. Deciding case by case across sixty letters produces inconsistencies that are worse than the original gap, because now you have written contradictions.

Take signed acknowledgements back. An unsigned letter proves what you issued, not what was received. For a backfill in particular, where the point is to close a gap that is already open, an acknowledgement is what turns a stack of paper into evidence.

While the file is open, it is worth checking the rest of the labour code paperwork rather than doing this twice. The registers and wage slips have their own prescribed forms, covered in the article on statutory registers and wage slips, and the wage components you are about to write into item (xi) are the same components affected by the fifty percent rule, covered in the article on restructuring CTC. If the letter says one thing and the payslip says another, you have created the inconsistency yourself, in writing.

Frequently asked questions

Is an appointment letter now legally mandatory in India?
For establishments with ten or more workers, yes. Section 6(1)(f) of the OSH Code, in force since 21 November 2025, requires one for every employee, and Rule 6 of the OSH Central Rules 2026, in force since 8 May 2026, prescribes the format and bars employing anyone without one. Below ten workers the OSH Code does not apply, and the obligation comes from your state Shops and Establishments Act instead.

Do I need to reissue letters to employees who already have one?
The statutory duty in section 6(1)(f) is to issue a letter to an employee who has not been issued one. It does not in terms require reissuing a letter that already exists but predates the prescribed format. The prudent course for staff whose existing letters are missing several of the sixteen items is to issue a short addendum carrying the missing fields rather than replacing the original contract, which avoids reopening agreed terms.

Is there a Form 6 or Form VI to download?
No. Rule 6 sets the format out inline in the rule itself, as sixteen numbered items and a signature block. The rules define "FORM" as the forms annexed in Annexure VII, and the appointment letter is not one of them. Summaries referring to Form 6 are describing something that does not exist in the notified rules.

Can I issue the appointment letter by email or does it need a wet signature?
The prescribed format ends with "Signature / Digital Signature of Employer", so a digital signature is expressly contemplated. Electronic issue is fine. What matters practically is that you can produce the letter and evidence that the employee received it.

What is the penalty for not issuing an appointment letter?
Section 6(1)(f) has no specific penalty, so section 94 applies: not less than Rs 2 lakh, extending to Rs 3 lakh, with a further penalty extending to Rs 2,000 per day if the contravention continues after conviction. The Rs 2 lakh figure is a statutory minimum rather than a starting point for negotiation.

Does this apply to contract workers on my site?
The format expressly recognises contractual employment as a type, and the OSH Code applies to contractors. The letters are the contractor's duty to their own workers, but a principal employer with no visibility of whether they exist is carrying a risk it has not looked at.

What about my state? My state has not notified its OSH rules yet.
The Central Rules govern establishments where the Central Government is the appropriate Government. Many states are still to notify their own rules, and until they do, the position for state sphere establishments is genuinely unsettled. Nothing in that uncertainty affects section 6(1)(f) of the Code, which is a statutory duty already in force nationwide. The safe reading is that the duty applies now and the sixteen item format is the best available evidence of what the eventual state format will look like.

The bottom line

The appointment letter has quietly become the most easily audited compliance item in Indian employment law. It is a single document, it either exists or it does not, and from 8 May 2026 its contents are prescribed to the field.

The part most employers have missed is the timing. The three month catch up window belongs to the Code, not the rules, and it ran out on 21 February 2026. If you employ ten or more people and anyone on your rolls has never received an appointment letter, you are not preparing for a deadline. You are closing a gap that is already open and widening by the day.

The fix is not complicated and does not need a lawyer for most businesses. Retrieve your LIN, settle your skill categories once, generate letters from whatever holds your employee record rather than retyping them, issue them dated today, and take the acknowledgements back. For a sixty person business that is an afternoon of work against a floor of Rs 2 lakh if somebody asks and the file is empty.

Sources and further reading

The primary material for this article is the Occupational Safety, Health and Working Conditions Code, 2020 and the Occupational Safety, Health and Working Conditions (Central) Rules, 2026, notified by G.S.R. 345(E) dated 8 May 2026 and published in the Gazette of India Extraordinary. Section 6(1)(f), section 2(1)(v) and section 94 of the Code, and Rule 1(3), Rule 2(1)(b) and Rule 6 of the Rules including the sixteen item format, were read from those texts directly rather than from any summary. The codes and rules are published by the Ministry of Labour and Employment, the statutory text is available on the Government of India's India Code repository, and the commencement of all four codes on 21 November 2025 was announced by the Press Information Bureau. Establishment identifiers referred to as the LIN are issued through the Ministry's Shram Suvidha portal.

This article describes the position as at 4 September 2026. State governments are notifying their own rules under the OSH Code on separate timetables, and no decision has yet interpreted the interaction between the backfill window that closed in February 2026 and the format prescribed in May 2026. It is general information, not legal advice. Take advice on your own facts before relying on any of it.