Defendant appears and contests suit without objecting to service. Can he later challenge service?

The Governing Principle: Waiver by Voluntary Appearance

The object of service of summons, as Order V of the Code of Civil Procedure unambiguously declares, is to inform the defendant of the institution of the suit so that he may appear and answer the claim. Once that object is completely fulfilled — once the defendant actually appears, files a written statement, and contests the suit on its merits — the foundational purpose of service has been achieved. It would be a perverse outcome to allow the same defendant who fully participated in the proceedings to turn around at a later stage and say: "I was not properly served." That would be using a procedural rule as a shield to escape a decision on the merits, which courts have consistently refused to permit.

The law, therefore, recognises the principle of waiver. A defendant who voluntarily appears and contests the suit without raising any objection to the mode or manner of service of the summons is deemed to have waived his right to challenge that service subsequently. The right belongs to him; it was created for his protection; and like all such rights, it can be given up. The Supreme Court has expressed this view in a series of decisions, holding that when a party, with full knowledge of the defect, chooses to participate in the proceedings without demur, he cannot later complain of that defect.

Order III, Rule 5 and the Broader Principle

The principle extends even to process served on a pleader. Order III, Rule 5 provides that process served on the duly appointed pleader of a party shall be presumed to be communicated to the party himself. Significantly, where a party is represented by counsel before the court, it cannot claim want of notice and object to the proceedings later. The Supreme Court settled this in Punjab National Bank v. S.C. Society (2007) 7 SCC 81, observing that participation through counsel implies full knowledge and acceptance of the proceedings. This is not an isolated proposition — it flows from the very logic of the adversarial system, which presumes that a litigant who enters the arena does so with awareness of what he is entering.

The Crucial Distinction: Irregularity and Illegality

Here lies the most important nuance in the law. Waiver operates only in respect of irregularities — defects in the procedural form or mode of service. It does not, and cannot, cure what amounts to a fundamental illegality or a jurisdictional defect. This distinction matters enormously in practice.

Where, for instance, a summons was served at the wrong address, or was not served within the time stipulated, or was served by a mode not strictly complying with the rules — these are irregularities which the defendant cures by appearing and contesting the suit. The second proviso to Order IX, Rule 13 itself recognises this philosophy by providing that no court shall set aside an ex parte decree merely on the ground of an irregularity in service, if the defendant had notice of the date of hearing and sufficient time to appear. By the same token, when a defendant actually appears and contests, the question of setting aside any ex parte step simply does not arise.

Where Waiver Cannot Apply

However, not every infirmity in the service of summons can be waived by appearance. Where the entire foundation of the suit is laid on a court that lacks jurisdiction, or where service was not effected on a defendant at all and the "appearance" was not voluntary but was made under a mistaken belief about the nature of the proceedings, courts have been reluctant to apply the waiver doctrine mechanically. Similarly, where the defendant appears under protest — specifically raising an objection to jurisdiction or to the validity of service at the very threshold — his appearance does not amount to a waiver. Order XXX, Rule 8 even recognises the concept of appearance "under protest" in suits against firms, allowing a person served as a partner to appear and simultaneously deny his liability as such.

The Governing Test

The test, reduced to its essentials, is this: if the defendant, having full knowledge of the defect in service, chooses to contest the suit on merits without raising the objection at the earliest available opportunity, he is deemed to have waived the right to challenge the service. But if he raises the objection promptly — at the first hearing, in the written statement, or before any substantive step in the proceedings — his right remains alive and can be pressed. Delay in raising the objection, combined with active participation in the suit, is what the law treats as waiver. The courts have consistently refused to allow procedural objections to be kept in reserve as a tactical weapon, to be deployed only when things go wrong on the merits. That is not the purpose for which procedural law exists.