IP disputes rarely unfold in neat, linear ways, and Castrol v. Sanjay Sonavane is a case in point. Faced with a fast-evolving conflict spanning threats, raids, and a coordinated media campaign, Castrol had to navigate a tricky procedural question: one suit or many? In this post, Naman Singh examines the Delhi High Court’s answer and why its nuanced take on “cause of action” under Order II Rule 2 CPC carries significance well beyond the facts of the case. Naman is an LLB (Hons.) student at National Law School of India University, Bengaluru. Having a background in music, film, and media, He enjoys all things at the intersection of IP and law.

Shooting The Second Suit: Castrol v Sonavane & The Application of Order II Rule 2
By Naman Singh
IP litigation can be chaotic at times. Imagine yourself rushing to court to stop someone from threatening your distributors and from pursuing baseless litigation against you. When you figure out your legal strategy to get interim relief against such use, you are hit by new developments a week later. This comes in the form of a discovery that the same person has been cohesively running a WhatsApp campaign in a group that has many relevant stakeholders and members of your industry (the engine lubricant industry in this case), wherein YouTube videos of your distributors’ premises being raided have been circulating. To add to your vision of this, imagine the same links are supplemented with a message that indicates that you’re a counterfeiter!
The options before you may appear simple. Do you file a new suit? Or do you navigate through a procedural needlestack to seek remedy against this disparagement in the same suit?
This needlestack is precisely what Castrol found itself in. The Delhi High Court’s Division Bench (DB), in Castrol Limited v Sanjay Sonavane, has now answered the question. The implications of that answer, honestly, matter in ways beyond the specific facts.
Briefly put, Sanjay Sonawane, a Nashik-based proprietor of a “3P Formulation” device mark in Class 4 for engine lubricants and other goods like greases, motor spirits etc., filed a police complaint that alleged that Castrol’s “3X Protection” branding infringed upon his rights. A police raid followed at Castrol’s authorised distributor, which was further followed by vernacular Marathi news outlets running “Copyright Violation” headlines. These stories were annexed with images of Castrol’s products too. Adding flame, a YouTube video of the raid went online, which was then circulated by Sonawane in an industry-wide WhatsApp group. He captioned his message with a warning: “More raids are coming.” Castrol, thus, filed two suits. The first, instituted under Section 142 of the Trade Marks Act, 1999 and Section 60 of the Copyright Act 1957, to stop the groundless threats and the infringement claims. The second was to address the media campaign, which Castrol claimed constituted disparagement. The Single Judge (SJ) dismissed the second suit as being barred by Order II Rule 2 of the Code of Civil Procedure (CPC). In an appeal against this dismissal, the DB disagreed.
Why Does Order II Rule 2 Exist?
To better appreciate why the DB’s reversal matters, it helps to briefly go over what Order II Rule 2 is doing. Simply put, it prevents a plaintiff from splitting a single grievance into multiple suits. The logic of this rule is encapsulated in the principle that no one ought to be vexed twice for the same cause. This principle famously finds approval in the case of Coffee Board v. Ramesh Exports (Supreme Court 2014). This means that if your right to sue arises from a single cause of action, then you must bring all your claims from that right at once. If you fail to do so, you forfeit all claims that you leave behind. (Or else the defendants probably would be left feeling harassed, reminded of Sunny Deol’s locus classicus dialogue from Damini).
A Constitution Bench of the Supreme Court, in the case of Gurbux Singh v Bhooralal (1964) set down three conditions that must be established by the defendant to impose this bar on a plaintiff. Firstly, the second suit should be in respect of the same cause of action as the first. Secondly, the plaintiff is entitled to more than one relief in respect of that specific cause of action. Thirdly, the plaintiff has omitted to sue for relief, without the permission of the Court, which is now being claimed. Worth noting here is that the Court emphasised the fact that the identity of the cause of action is a necessity. This means that unless both the suits (or ‘lis’ if you are a lover of latin) rest on the same cause of action, the bar cannot apply.
Predicting the next question and answering it: What is a ‘cause of action’? Gurbux Singh defines it as the facts that the plaintiff had alleged to support the right to the relief that he claimed. This definition is functional in nature. A cause of action is identified by asking what facts a plaintiff must prove to win (or the specific legal ingredients that are necessary to win in court) and not what facts they allege or what background they describe. The DB in Castrol, reaffirms this idea, stating that the cause of action is intrinsically linked to the relief being sought. In toto, to identify the cause of action, one must work backwards from the relief, identify the necessary facts, and viola, the cause of action is found.
DB’s (Really) Detailed Tracing of “Cause of Action”
As per the DB, the SJ erred in conflating the sequence of events, as they transpired between the parties, with the cause of action that flows from them. You see, both the suits involved the same factual background. There was a raid, there was media coverage, and there was a WhatsApp campaign. The SJ treated them as arising from the same cause of action. The DB drew on Cuddalore Powergen Corporation v Chemplast Cuddalore Vinyls Ltd (Supreme Court, 2025) to reject this. The idea that arises is that one transaction or sequence of events can generate many legally distinct causes of action. The question, thus, is never whether the facts overlap (because the SJ’s judgment seems to suggest that if facts overlap, the cause of action is the same). It is, in fact, whether the facts a plaintiff must prove to win each suit are the same.
Applied to Castrol, the difference is big. The first suit required Castrol to prove that it was not infringing on Sonavane’s mark or copyright and that Sonavane was holding out threats that created a reasonable apprehension of baseless proceedings. The second suit, on the other hand, sought relief against disparagement. This required Castrol to prove that Sonavane and the media defendants had circulated material that damaged Castrol’s reputation in the eyes of the public. Therefore, the facts needed to be proven in one suit are irrelevant when juxtaposed on the other suit, or as the DB puts it, they “hardly overlap.”
Two small points that deserve attention are also as follows:
Firstly, the essential fact linking Sonavane to the disparagement campaign, which was his act of forwarding the videos, took place after the filing of the first suit. Therefore, the fact that needed to be proven in the second (disparagement) suit had not existed when the first suit was filed. It is a logical and factual impossibility to plead a fact that is not yet in existence. The DB also notes the same, thereby shutting the SJ’s suggestion that Castrol could have included a disparagement claim in the first suit and then amended it later.
Secondly (and also independent of the discussion above), is Order II Rule 3 of the CPC. This permits a joinder (or consolidation) of causes of action. But it permits so only against the same defendants. This reading also shuts down the SJ’s “file one suit and amend” solution as unworkable as a matter of law. The Newspapers and YouTube channels impleaded in the second suit had nothing to do with the infringement and groundless threat claims of the first suit. A defamation and disparagement cause of action against entirely new defendants (not impleaded in the first suit) in a suit about trademark non-infringement cannot be joined. Order II schemata does not permit such a liberal jump (especially when the law in question is procedural – which is more inert when concerned with interpretation). Rule 2 requires combining reliefs from the same cause of action, whereas Rule 3 permits combining different causes of action, but only against the same defendant. To do what the SJ proposed clearly falls outside what CPC allows.
What Does This Mean Going Forward?
This case is a good reminder that Order II Rule 2 is a shield against abuse. It cannot become a sword against plaintiffs who file urgent-relief suits (which are more often than not, narrow in nature), and later discover that the dispute has grown. The provision targets the deliberate and nefarious suit-splitting plaintiff. A plaintiff who responds as quickly as the facts allow, should not be barred using this shield.
In IP disputes, this matters because there may be multiple parties involved, as well as multi-front matters. The nature of commercial IP disputes as such is also dynamic (as clearly seen in the Castrol case). Time being of the essence in protecting one’s rights, by the time the full picture emerges, the first suit may already have been filed. Therefore, a rigid reading of Order II Rule 2, if adopted, penalises brand owners for the very pace and responsiveness that urgent reliefs require. Such a reading invariably means that brands must either plead a disparagement case before they have evidence to prove it, or forfeit the right to bring it to court, as they prioritised the infringement claims first.
To end, the DB also made an observation in regard to Order II Rule 2, stating that it “does not even envisage, much less require, a combination of different causes of action in a single suit, even if the facts stated in the plaints may overlap to some extent.” To reiterate, it is not an overlap of facts, but identity of the causes of action, which form the conclusive test to check whether the bar of procedure applies or not. This is where the SJ erred, and the DB restored. Afterall, facts help set up a scenery, but the cause of action is what substantively determines outcomes.