Chamber Notes
In Spite of Due Diligence: What Order VI Rule 17 Stops Asking Once the Trial Begins
24 September 2026 · 17 min read
An amendment application is argued as a question about a document. Counsel takes the Court to the proposed amendment, explains what it adds, and submits that without it the controversy cannot properly be decided. The other side says it changes the case, or that it is belated. The Court allows or refuses. On that way of putting it, the only thing being decided is whether the amended pleading is a better statement of the dispute than the existing one.
Order VI Rule 17 puts it that way only up to a point. After that point it puts a different question, and the different question is not about the document at all.
The rule has two limbs
Rule 17, as it now stands, reads: "The Court may at any stage of the proceedings allow either party to alter or amend his pleadings in such manner and on such terms as may be just, and all such amendments shall be made as may be necessary for the purpose of determining the real questions in controversy between the parties: Provided that no application for amendment shall be allowed after the trial has commenced, unless the Court comes to the conclusion that in spite of due diligence, the party could not have raised the matter before the commencement of trial."
The main limb has two halves that are usually run together but are not the same. The first is permissive — the Court "may" allow, at any stage, on such terms as may be just. The second is not permissive at all: amendments "shall be made as may be necessary for the purpose of determining the real questions in controversy between the parties". That is an obligation, and its measure lies outside the applicant. Whether an amendment is necessary to determine the real question in controversy is a question about the dispute. It does not depend on when the party thought of it, or why he did not think of it earlier, or how carefully he read his own file. A necessary amendment is necessary whoever asks for it and whenever it is asked for.
The proviso measures something else. It asks whether, "in spite of due diligence, the party could not have raised the matter before the commencement of trial". Every element of that is a fact about the applicant. Did he exercise diligence; if he did, was the matter nevertheless beyond his reach; and was it beyond his reach at a particular earlier time. None of it concerns the dispute. All of it concerns the litigant's own conduct during a period that has already closed.
So Rule 17 does not simply become stricter when trial commences. It changes subject. Before that moment the Court is examining the controversy; after it, the Court is examining the party.
What 1999 did, and what 2002 did about it
The proviso is generally introduced as a qualification imposed on a long-standing and liberally administered power. That is accurate as a description of practice — the rule stood without a proviso from 1908 to the middle of 2002, and nothing in what follows disturbs the construction the main limb had acquired in that time. But it is not how the proviso entered the Code, and the difference bears on what the proviso is for.
Section 7 of the Code of Civil Procedure (Amendment) Act, 2002 reads: "In the First Schedule, in Order VI, for rules 17 and 18 [as they stood immediately before their omission by clause (iii) of section 16 of the Code of Civil Procedure (Amendment) Act, 1999 (46 of 1999)], the following rules shall be substituted".
Two things follow from that bracket. The first is that Parliament's answer in 1999 was not to restrict the power to amend pleadings. It was to remove the rule. Rules 17 and 18 of Order VI were omitted, and the Code was to be left with no express provision for the amendment of a plaint or a written statement at all.
The second is that section 7 did not amend a surviving rule, because on its own terms there was no surviving rule to amend. It enacted a fresh Rule 17 in place of one that had been taken out. The main limb reproduces the pre-1999 words; the proviso is new.
The dates keep this from being merely formal, and they keep it from being more than it is. The 2002 Act received assent on 23 May 2002, and section 1(2) left its commencement to notification. The 1999 Act was in the same position: it had been passed but not brought into force. Both were notified into force together on 1 July 2002. The omission of Rules 17 and 18 and their replacement therefore took effect on one day. No court ever sat under a Code that lacked Rule 17, and no litigant was ever refused an amendment on the ground that the rule had been deleted.
What that leaves is not a rule with a history of liberality onto which a restriction was later grafted. It is a rule that Parliament first resolved to abolish and then, before that resolution ever operated, resolved instead to restore on terms. The proviso is those terms. Read that way it is not an incursion on a liberty Parliament had left undisturbed; it is the narrower of two restrictions Parliament successively enacted, and the one it settled on in preference to having no rule at all.
The rule restored four sections later
Section 11 of the same Act reads: "In the First Schedule, in Order XIV, for rule 5 [as it stood immediately before its omission by clause (ii) of section 24 of the Code of Civil Procedure (Amendment) Act, 1999 (46 of 1999)], the following rule shall be substituted".
The history is identical. Order XIV Rule 5 had also been omitted by the 1999 Act, and was also restored by the 2002 Act. The rule substituted is this: "(1) The Court may at any time before passing a decree amend the issues or frame additional issues on such terms as it thinks fit, and all such amendments or additional issues as may be necessary for determining the matters in controversy between the parties shall be so made or framed. (2) The Court may also, at any time before passing a decree, strike out any issues that appear to it to be wrongly framed or introduced."
Set that against Rule 17 and the parallel is close enough to be deliberate. Both are powers of amendment. Both are conferred permissively in the first clause and then made obligatory by the second — "shall be made as may be necessary for the purpose of determining the real questions in controversy between the parties" in Order VI, "as may be necessary for determining the matters in controversy between the parties shall be so made or framed" in Order XIV. Both were omitted by the 1999 Act; both were restored by the 2002 Act, in sections four apart; and both restorations took effect on the same day. The formulas are not word for word identical — Order VI speaks of "the real questions in controversy", Order XIV of "the matters in controversy" — but the structure is the same in each, and nothing below turns on the difference.
The differences that do matter are two. Order XIV Rule 5 has no proviso. And its outer limit is not the commencement of trial but "at any time before passing a decree" — which is later by the length of the entire trial.
The line the 2002 Act drew is therefore not between one subject-matter and another. It is between who moves. Where the amendment is sought by a party on his own pleading, it is available after trial commences only on proof of the party's diligence. Where the amendment is of the issues, the Court may make it at any time up to decree, on terms it thinks fit, and nothing in Rule 5 requires anybody to explain why it was not asked for sooner.
What each power can actually reach
That contrast should not be overstated, because the two rules do not operate on the same material.
Order VI Rule 1 provides that "'Pleading' shall mean plaint or written statement". What Rule 17 alters is a party's own assertion of fact — the allegations on which he asks to succeed. An issue is a different kind of thing. Order XIV Rule 1(5) requires the Court, at the first hearing, after reading the plaint and the written statements, after examination under Rule 2 of Order X, and after hearing the parties or their pleaders, to "ascertain upon what material propositions of fact or of law the parties are at variance", and thereupon to frame and record the issues on which the right decision of the case appears to depend. An issue is the Court's formulation of a disagreement that the pleadings already disclose. It is derived from them.
It follows that Order XIV Rule 5 cannot be used to supply a fact nobody has alleged. There can be no variance about a proposition that neither side has put forward, and a Court framing an additional issue on an unpleaded case would not be recording a variance but creating one. Rule 5 is not a route around the proviso to Rule 17, and an application under it that in substance asks for an unpleaded case to be tried is asking the Court to do by one rule what the other forbids.
What Rule 5 does reach is the case where the pleadings, read as they stand, raise a controversy the framed issues do not capture — because the issues were framed early, or narrowly, or before the documents came in, or because the pleadings were read one way at the first hearing and are seen to bear another reading later. There the material is already on the record and the defect is in the Court's own formulation, and the Code imposes no diligence condition and no cut-off short of the decree. That is a narrower opening than the words of Rule 5 might suggest. But it is real, and it is open at a stage when Rule 17 is shut.
The event the Code does not define
The proviso turns on the commencement of trial. The Code does not say when that is.
Section 2 defines more than twenty expressions, several of them at length — decree, judgment, order, legal representative, mesne profits, public officer. Trial is not among them, and the commencement of trial is not fixed anywhere else as a general matter. The Code's own signposts point at different events. Order XIV Rule 1(5) places the framing of issues at the first hearing, which precedes evidence. Order XV, headed "Disposal of the Suit at the First Hearing", allows judgment to be pronounced at once where the parties are not at issue, and in some cases where they are — which assumes that something judicial can happen before any trial in the ordinary sense begins. Order XVIII Rule 1, headed "Right to begin", provides that "the plaintiff has the right to begin" unless the defendant admits the facts alleged and contends that on the law or on additional facts of his own the plaintiff is entitled to no part of the relief he seeks, in which case the defendant begins. The natural reading of a trial beginning is that somebody exercises that right.
Order XVIII Rule 4 makes that last signpost less serviceable than it was, and does so by the hand of the same Act. Section 12 of the 2002 Act substituted Rule 4, and sub-rule (1) as substituted provides: "In every case, the examination-in-chief of a witness shall be on affidavit and copies thereof shall be supplied to the opposite party by the party who calls him for evidence." Before that substitution the beginning of evidence was an event in court: a witness was sworn and examined. After it, the examination-in-chief is a document that is filed and served. A party exercising the right to begin may now do so without anybody entering the witness box, and without the case being taken up that day for any purpose beyond the receipt of papers.
So the 2002 Act did two things whose interaction it did not address. By section 7 it made the commencement of trial the moment at which a party's right to amend his pleading becomes conditional on his past diligence. By section 12 it converted the opening of evidence — the clearest available marker of that moment — into the filing of an affidavit. The event on which the proviso operates was left undefined, and the one signpost that had been unmistakable was simultaneously made capable of being a paper event.
There is no resolution of this in the text, and what commences a trial for the purposes of the proviso is argued on its own in each case. What the text does establish is that the proviso attaches a consequence of some severity to an event the Code declines to identify, and that the party who bears the consequence is the one who has to judge when it occurred.
What the application has to establish
Because the proviso's test is about the applicant, the application has to be about the applicant. An application made after trial has commenced and refused on the proviso has usually failed here rather than on the merits of the amendment sought.
The proviso is not satisfied by showing that the amendment is necessary, or that it causes no prejudice, or that the other side can be compensated in costs. Those go to the main limb and to the terms on which an amendment is allowed. The proviso requires the Court to "come to the conclusion" that in spite of due diligence the party could not have raised the matter earlier. A conclusion of that kind rests on three facts: that diligence was exercised; that the matter nevertheless could not have been raised; and that this was so before the commencement of trial, rather than merely inconvenient to do then.
Put as pleading, that means the application must say when the fact or document came to the applicant's knowledge, from what source, what enquiry or search had been made earlier, and why the earlier enquiry did not produce it. A matter that was in the applicant's own custody throughout is not assisted by the statement that it was overlooked, because being overlooked is the opposite of what the proviso asks to be shown. A matter that emerged from the opposite party's documents, or from a record obtained from a public office, or in cross-examination, can be placed in time — and placing it in time is the whole of what the proviso requires.
Rule 17 itself prescribes no form for the application and requires no affidavit in support of it. Facts personal to a party are ordinarily put before a Court on his own oath rather than on his advocate's signature, and an application that asserts diligence in its body and is verified by nobody offers the Court a submission where the proviso asks for material. But the Code also reaches the same question from the other end, after the application has succeeded, and it does so in the rules on verification.
Order VI Rule 15(1) requires every pleading to be verified at the foot by the party, or by one of the parties pleading, or by some other person proved to the satisfaction of the Court to be acquainted with the facts. Rule 15(2) requires the person verifying to specify, by reference to the numbered paragraphs, "what he verifies of his own knowledge and what he verifies upon information received and believed to be true". Rule 15(4) requires him also to furnish an affidavit in support of his pleadings — a sub-rule inserted by the very Act, 46 of 1999, that omitted Rule 17, and brought into force on the same 1 July 2002. In a commercial dispute, Order VI Rule 15A — inserted by the Commercial Courts Act, 2015 — is express on the point at sub-rule (3): "Where a pleading is amended, the amendments must be verified in the form and manner referred to in sub-rule (1) unless the Court orders otherwise" — that is, by affidavit in the prescribed form; and Rule 15A(4) provides that a pleading not so verified cannot be relied on as evidence or as to any matter set out in it.
An amended plaint is a plaint. The amendment therefore has to be verified, and the verification has to allocate each amended paragraph between what the party knows of his own knowledge and what he has on information and belief. That allocation is the diligence question again, in a different place. A paragraph verified as of the party's own knowledge invites the question when that knowledge was acquired; and the answer given in the verification has to be the same answer given in the application.
Rule 18, restored in the same breath
Section 7 substituted two rules, and the second is the one left out of the discussion. Rule 18 reads: "If a party who has obtained an order for leave to amend does not amend accordingly within the time limited for that purpose by the order, or if no time is thereby limited then within fourteen days from the date of the order, he shall not be permitted to amend after the expiration of such limited time as aforesaid or of such fourteen days, as the case may be, unless the time is extended by the Court."
Leave to amend is not the amendment. The order permits a step; the step is the filing of the amended pleading. If the order fixes a time, that time governs. If it does not, fourteen days run from the date of the order, and once they expire the party "shall not be permitted to amend" unless the Court extends the time.
The two rules therefore police the same quality at two different points. The proviso to Rule 17 asks whether the party was diligent before he applied. Rule 18 asks whether he was prompt after he succeeded. They were omitted together in 1999 and re-enacted together in 2002 by one section, and they read better as a single scheme than as a substantive rule with a procedural footnote. A party who establishes his diligence over the years before trial and then allows fourteen days to pass is in the position of a party who never applied, and the second failure is harder to explain than the first.
What the Code accepts
The main limb of Rule 17 says that amendments shall be made as may be necessary to determine the real questions in controversy between the parties. The proviso says that after a point, an amendment necessary for that very purpose shall not be allowed unless the party was diligent.
Those two sentences cannot both be given full effect, and the proviso decides which yields. The Code therefore contemplates, in terms, that a suit may be decided on a controversy that is not the real one, because the party who could have pleaded the real one did not do it in time. It does not pretend otherwise. It does not say that the unamended pleading states the real controversy, or that a party who was not diligent has no case. It says he will be tried on what he pleaded.
That is a choice about who carries the cost of a late realisation, and the Code answers it consistently. The party who was in a position to know, and did not act, carries it. The Court, which was never in that position, is not made to carry it: Order XIV Rule 5 leaves it free to reframe the controversy of its own motion at any time before decree, with no condition attached and no cut-off short of the decree itself.
Read together the two rules are not in tension. The 2002 Act was willing to trust the Court with an unconditioned power of amendment all the way to judgment, and unwilling to extend the same latitude to the party whose own pleading was in question once the trial had begun. The safeguard against deciding the wrong question was not placed in a relaxation of the proviso. It was left where it already was, in the Court's own hands.
Authored by Eshan Kumar Gupta, Advocate, Hon'ble Allahabad High Court, Lucknow Bench.